So, you've decided to fight Omega and Ultima?

Have everyone in your party read and consider the following strategy. The following strategy is what I've determined from my own experiences with this fight. The strategy detailed within is common knowledge among most shells and players who've beaten this Mission, but has not been expressly written.

Ok, here's the deal with this fight. First off -- party setup.

Party Setup
smn, whm (subs: blm, brd, nin)
rdm (subs: nin, drk, whm, blm)
nin, thf (subs: war, rng, blm, whm)
smn, brd (subs: whm, blm)
blm, whm, brd (subs: rdm, smn)
pld (subs: war, nin, thf)

From this pool, you'll want:
WHM/SMN
RDM/BLM
NIN/WAR
SMN/WHM
BLM/WHM
PLD/WAR

Party Explanation --Why no BRD?
Primarily BRDs are better over RDMs in buffs, especially evasions buffs which make NINs far more effective in all three fights, and practically invulernable to the melee in the mammet section with the right equipment. However, I wouldn't have a BRD and RDM in the same fight, why? Damage. Red Mages can still refresh which would primarily be the BRD's main role, but RDMs can also nuke and cure more effectively. RDM's Chainspell is also a powerful tool to shave off the last bit of life on Ultima or Omega.

The white mage's role is pretty standard, cure, remove status, etc. except this fight will put the most pressure on WHMs as if you do not cure fast enough or remove statuses fast enough (like Erasing Chemical Bomb which will make your Ninjas cry) then your chances are severely affected.

NIN/WAR is the standard tank for Omega and Ultima. Omega and Ultima both hit hard and Omega has Add. Effect Stun which basically makes PLDs useless. Ninjas should have no problem on Omega so long as they can keep hate. The is especially critical when Omega Pile Pitches (read: dead mages).

I chose your BRD to be a Summoner over the fact that you guys simply would need more damage, and the fact that Fenrir, Titan, Garuda, and now Diabolos can help cushion the pain of this fight. Garuda's Blinga and Titan's Stoneskin-ga is an obvious help to the Summoner, other mages, and tanks. Fenrir's Accuracy Debuff and buff, when used on the appropriate mobs can also help the Ninja and surrounding melee's fight easier. Now, here's the cool part: Diabolos. Diabolos has a Magic Attk up/Def Up move that will give your RDM and BLM an added boost when they nuke or SP. The added damage can help move the fight to keep your white mage from exhausting. Also, Diabolos' Phalanx-ga, this ability can help keep your melee and tank alive when Omega loses hate or jumps up and down. If Diabolos can use this at lv.60 then rock on man. (Lastly, Diabolos two hour demi, I'd like to try and experiment with this at the outset of either Omega or Ultima just to see how much damage it does, but that'd be extremely reckless, but if it did more than the other SP attacks then rock on SMN) The Summoner two hour, which you should probably save for Ultima, is pretty straightfoward. Bring refresh drinks and enough Ether to get your MP back up (MP120) to the point where you can attack again, and attack for the third time. The more SP attacks you can throw at Omega or Ultima the better.

BLM/WHM is another straightfoward role. Its your job to nuke when the melee chain, or help win in a zombie kill which I'll talk about later. BLM generally need to nuke hard, but sparingly to avoid aggrivation as usual. If your BLM dies the fight will become much more slow, so, try to stay up. Also don't be afriad to use MP to cure the WHM, RDM, or even an ill-looking melee player. Use your spells wisely. -ga attacks and thunder are usually the way to go, but save ancient magic for dire circumstances or the end of either Omega or Ultima fight, and when using ancient magic DO NOT USE FREEZE ... I speak from experience, it did shitty damage.

Ok, so you've got a Paladin in the fight. I won't lie to you or your Paladin. He'll feel like Urzasoltan in an Ouryu BC (pretty useless/riding along), however, this doesn't mean we won't be able to get some use out of him. If your PLD can dress to deal damage, you might want to have him do so to help move the fight, but more importantly a Paladin can help the melee hold hate. When Omega pile pitches, for example, a Paladin can Flash Omega, Cure the Ninja, which would give him Omega's attention until the Ninja can get his shadows up, be cured, and provoke to get moving again. This is one example, but your Paladin can also help cure in general. In case your Ninja dies, your paladin will obviouslly 'assume the position.' In which case switching to DEF gear would be highly recommended. Have your PLD tank until your Ninja can get back up and ready to fight again. Once your Paladin dies (he will), have your Ninja start tanking again. If your Ninja dies and Omega or Ultima aren't close to death, then its game over.

At Sealion's Den
The first most important thing you can do at the Den is to make sure everyone in your party is comfortable and understands the roles they are about to peform. Make sure everyone has the items that they need to peform to their peak peforamance. I'll list the items below. Once the above is checked out go ahead and have every person whos participating who hasn't completed this mission to clear the first cut scene then return, from the airship, to the Den. In clearing the first cut scene you'll save yourself some precious time during the actual fight. You will have to clear the cut scene again if you leave the Den. It is extremely important to be optimistic, however, statistically speaking you will lose your first fight, so experiment, get a handle for the battlefield and the mobs, and most importantly have fun. Lastly, all buffs are stripped, so make sure to buff when you enter the BC.

Items you'll need for each job are listed below. This is what makes this fight so expensive. Remember ... items listed are projected for one fight, but most importantly you should have your party buy items that they feel will make them most successful. This list seems excessive because this fight, and myself, are a little crazy. Do not see this list as an authoratative source as what you need.

Numbers in bold are recommended.
___
WHM/SMN -- Yagudo Drinksx5 x8 -- Spam these, not kidding.
-- Hi-Etherx2 x3+ -- Hi-ethers are tricky. They take a long time to use but if you use them tactically (pop one towards the beginning of the fight) they'll help prolong your MP just for a little bit longer which will keep you from exhaustion.
-- CCB Polymerx1 -- We'll talk more about when to use these later.
-- Food: Marron Glace -- Huge boost to MP and helps recover MP while healing, especially critical when your recovering from MP after you buff your party.
___
RDM/BLM -- Yagudo Drinksx5 x6+ -- Spam these, not kidding.
-- CCB Polymerx1 -- We'll talk more about when to use these later.
--Reraise Hairpin or Reraise Item -- The WHM does not have time, and should not raise you in the course of this fight.
-- Food: Marron Glace -- Huge boost to MP and helps recover MP while healing, especially critical when your recovering from MP after you buff your party.
___
NIN/WAR -- (I'm not a melee player, I don't know what you'd prefer, but from research I think you'll find the best results with these:)
-- Hi-Potions x5 -- In case your White mage is either slow or incapicated casting stoneskin or erase, or something, Hi-Potions come in real handy, but since you should be casting shadows I'm not going to stress the purchase or use of these.
--Reraise Hairpin or Reraise Item -- The WHM does not have time, and should not raise you in the course of this fight.
-- Food: Evasion Food: "Jack O' Lanterns" +10 Evasion
Defensive Food: Leremieu Taco +25% Defense (160 Cap)
-- CCB Polymerx1 -- We'll talk more about when to use these.
___
SMN/WHM -- Yagudo Drinksx5 x8 -- Spam these, not kidding. You'll be helping cure too.
-- Hi-Etherx4 -- You'll either have to use Ethers to restore MP for Astral Flow (Hi-Ether: 50 MP at 10 sec use time), or if you want to try Super Ethers which restore 100 MP at 14 sec use time. Either that or Vile Elixer to restore enough MP for one Astral Flow. Remember, you'll need 120MP to use Astral Flow, so get there anyway you want. Don't use Pro-Ether. These give you medicine status, then you can't use any more ethers at all.
--Reraise Hairpin or Reraise Item -- The WHM does not have time, and should not raise you in the course of this fight.
-- CCB Polymerx1 -- We'll talk more about when to use these later.
___
BLM/WHM -- Yagudo Drinksx5 x8 -- Spam these, not kidding.
-- Hi-Etherx2 x3+ -- Hi-ethers are tricky. They take a long time to use but if you use them tactically (pop one towards the beginning of the fight) they'll help prolong your MP just for a little bit longer which will keep you from exhaustion.
-- CCB Polymerx1 -- We'll talk more about when to use these later.
--Reraise Hairpin or Reraise Item -- The WHM does not have time, and should not raise you in the course of this fight.
-- Food: Marron Glace -- Huge boost to MP and helps recover MP while healing, especially critical when your recovering from MP after you buff your party.
___
PLD/WAR -- (I'm not a melee player, I don't know what you'd prefer, but from research I think you'll find the best results with these:)
-- Hi-Potions x5 -- In case you find yourself tank'ing for whatever reason, you'll need Hi-Potions to heal yourself, why?, because you won't be able to cure yourself, especially on Omega. You'll either be stunned or paralyzed so cure cast time will seem like three years instead 3 seconds.
--Reraise Hairpin or Reraise Item -- The WHM does not have time, and should not raise you in the course of this fight.
-- CCB Polymerx1 -- We'll talk more about when to use these.
--Reraise Hairpin or Reraise Item -- The WHM does not have time, and should not raise you in the course of this fight.
-- Food: Leremieu Taco +25% Defense (160 Cap)

On to the fight

CoP Missions6 Part 4 :: "One to be Feared"
Level cap:60
Enemies: Five Mammet 22-Zetas, Omega Weapon, Ultima Weapon each in three respective sections.
Location: Sealion's Den
Time limit: 45 minutes
Party size: 6 Members.
Corresponding items: CCB Polymer - Prevents Omega and Ultima from using Weaponskills for 30 seconds.

First Stage -- Five Mammet 22-Zeta

There's an aggro trick that makes this fight a million times easier, and since you have a NIN, your in luck. Your party should buff appropriately and use nessecary items, like reraise items for example. Then enter the first stage of the trifecta of terror that is "One to be Feared." Start off by making sure everyone's MP is in acceptable standing, then have your NIN run and aggro all the Mammets, without engaging them. Granted your NIN should definitly be decked out in evasion gear, including a pair of Bat Earrings and a Blind Potion to kick in the effect if you can afford it. All the Mammets will stay with the Ninja and will not attack anyone else so long as they are not touched. Simply have your PLD/WAR peel the mammets off one by one while the rest of your party engages the chosen Mammet. Everyone except the WHM should be giving their attention towards the destruction of the selected Mammet. The PLD/WAR should take care to peel of Mammets that have turned into Black mages (fire staff equiped). Black Mages can, and will, kill your Ninja and ruin a good start on this fight. The Paladin should peel Mammets off in this priority: Black Mage (Fire stave), Warrior (Curved Sword), Draggon (Lance), Monk (Default job). Don't hold back so long as the NIN has all the mammets aggro'd s/he will continue to hold them, and everyones respective attention can lay on killing Mammets. Your HP/MP will be completely restored, but weakness will not be removed so don't worry about low MP or using Ethers yet. With little trouble you should be able to move on to the real fight. If anyone dies in this phase do not continue, do not pass go, leave the BC.

Generally your experience on the earlier Mammet BCNM should help you expect what's coming, but here's some more info on the Mammet's attacks to refresh your memory.

Transfigmoration -- For 25 seconds, all melee damage to a Mammet will be turned into health for the Mammet.
Magic Shield - For 25 seconds, all magic damage will heal a Mammet.
Sonic Blade - Used by Warrior, AoE damage.
Tremenderous Treand - Used by Dragoon, light AoE damage and Stun.

Second Stage -- The Omega Weapon

**BEFORE ENTERING THIS FIGHT MAKE SURE YOU HAVE ASSIGNED THE ORDER FOR CCB POLYMER.**

The Omega Weapon's Abilities.
Ion Efflux - Paralyze status on one target.
Target Analysis - AoE status absorb, also absorbs shadows.
Hyper Pulse - AoE damage and Bind.
Guided Missles - Heavy frontal (read: one-shot mages) AoE damage.
Rear Laser - Petrify status on all targets behind Omega, Omega will only use this if someone behind him.

Omega's Trump Card Weapon Skills - Used at below 20% HP only.
Pile Pitch - Removes 9/10 of targets HP and removes all hate from target, think throat stab.
Discharger - Gives Omega magic immunity and Shock Spikes.

After playing this fight so many times I've honestly started to think that Omega is easier than Ultima, but certainly in fact Omega is easier on Ninjas than Ultima is. Once you begin this fight have your Ninja pull Omega to a corner of the arena. Preferable a corner near to where you spawn. Your mages should be in the opposite corner as to where the tanks and melee are. So they avoid Ion Efflux and Hyper Pulse. Once Omega is pulled mages and melee assume positions, but remember anyone engaging Omega needs not to be in front or behind Omega. While in front, Ion Efflux will kill you, while in back Rear Lasers will petrify you. And I swear if you make some poor WHM waste MP on Stona I'll kill you. So, any melee not tanking needs to be at Omega's left or right. White mage should macro Paralyna on the tank to keep the Ninja at peak peformance and keep the fight moving. Keep the fight moving and you'll soon see Omega at 50%. At this point his attack speed begins to increase, but its still not at the point where Throat Stab and Discharger kick in. Keep the pressure on, keep working hard, and provided you have no deaths you'll see Omega at 20% where the fun begins. When Omega uses Pile Pitch have your Paladin use a CCB Polymer, voke, help cure the Ninja, and get ready to tank until either the Paladin and Ninja or Omega dies. At this point you may choose to end a two hour to help quickly end the battle. I'd recommend using only Chainspell, and only if Omega can't get Discharger off. End the fight quickly, or burn another CCB Polymer if Omega uses Throat Stab or discharger again. Have your BLM dish out the ancient magic spell Burst if he has it to help quickly end the fight. Its is acceptable and expected if people die or are dead when you beat Omega. Just be fast about raising them in preparation for the next fight.

You should have at least 16-20 minutes when moving to Ultima.

Third Stage -- The Ultima Weapon -- "Its as if each side is making little progress!"

The Ultima Weapon's Abilities:
Wire Cutter - Single target damage, removes 2 shadows. Seems to have a high critical hit rate.
Particle Shield - Massive defense buff. be sure to dispel this.
Chemical Bomb - Frontal AoE, adds Slow and Elegy effects to the targets.
Nuclear Waste - Gives Ultima 100 TP lowers all elemental resistance by 50, Ultima will automatically use an elemental breath attack after this.
Flamethrower - Fire breath and Plauge.
Cyrojet - Ice breath and Paralyze.
Hydro Canon - Water breath and Poison.
Turbofan - Wind breath and Silence.
Smoke Discharger - Earth breath and Petrify.
High-Tension Discharger - Thunder breath and Stun (As Aximilli wasn't sure on this attack, neither am I.)

The Ultima Weapon's Trump Card Weapon Skills - used at 30% health and less.
Antimatter - Heavy damage to one target. This can be absorbed by shadows and is a ranged weapon skill.
Equalizer - Heavy AoE damage, 600+, to all targets. This ability fucking sucks.

This fight is a real test to your ninja tank and to the speed of how fast your white mage can cure Paralysis, Plague, Silence, Petrify, Slow and Elegy, and poison while still keeping up cures on the tank. Needless to say these fights are stressful, but this one is the deal break and where your Paladin will have an edge over the Ninja. Keep pressure on Ultima and again have your white mage make a macro for Paralyna as Ultima has permanent EnParalyna on all his attacks. Your Red Mage also has an important role to play in this fight; dispel'ing Ultima. Since your low on damage already, particle shield will make this fight even more difficult if it stays up. Have your Red Mage immediatlly dispel Particle Shield when it goes up to keep the fight moving. If your Ninja dies before Ultima starts kicking into "extreme battle mode" then you may be in trouble. Make sure your Paladin is packing on Hi-Potion in case your Ninja goes down early. Keep up the pressure. Fight hard. Fight smart. At 30% health Ultima will likely use Equlizer first. If any melee is below 600 HP they'll probably die. I've lost a few fights to Equalizer before, but anyway, at the first sign of Antimatter or Equlizer have the next person in your CCB Polymer order use a Polymer to stem Ultima's attacks. At this point, give a /nod to your Summoner, Black Mage, and Paladin.

Have the Paladin use Invincble to keep hate. Unlike Omega, Ultima does not have any type of ability to reset hate. Your Black Mage should Manafot and begin shooting out -ga and other power spells as fast as s/he can (save the ancient for the final blow, remember to stick with Burst and not use Freeze even though it takes less MP). If your Summoner can buff himself and the black mage with Magic Attack Up, do so before Ultima hits his critical, desperate mode. While the PLD in using Invincible, the Black Mage Manafonted, have your Summoner use Astral Flow and pound Ultima with the SP as many times as you can. If you have any luck this great, terrible battle should end.


Conclusion and final thoughts
Honestly your party setup lacks damage. A Paladin and Summoner will both be a drag on the damage. I'm not saying its impossible, but you'll probably find your fight maybe slightly harder than most others who have attempted the BC. If you manage to pull the win, Congratulations! I hope you found this information helpful. After some amazing cut scene action, take a breather, and pat yourself on the back. You'll wake up in Lufaise Meadows, have a new title, and come away with the Ducal Guard's Ring -- the original status item that let other people knew you were the furtherest with Promathia missions back when this fight was first released.

Other and Corresponding Strategies

The Zombie method -- "Braaaaains" -- This method involved purposeful wiping to Ultima and maybe Omega if your good on time. If your purposeful wipe where you spawn everyone can immediatly reraise without fear of aggro. Omega's and Ultima's health will stay the same and will not heal. Once everyone reraises you can start the fight again fully refreshed while Omega or Ultima will be at a disadvantage having little HP. A variation on this method is the BLM Zombie nuker, where the BLM raises himself, heals to full, then does a Elemental Seal and Burst nuke, which can shave off the final percents on Ultima and Omega. You really can't do this more than once, especially on Omega.

Ninja Bombing Tactic -- I originally heard this strategy from an over zealous NIN/BLM in FS I think. Frankly I thought this would't work, but apparently five NIN/BLMs and a WHM/SMN can tear through Omega and Ultima in no time at all. Omega and Ultima both have low magic resistance, so nukes can cut through them pretty well. And when you have five NIN/BLM with shadows keeping hate solely through dishing out some serious pain with nukes over, and over, and over again it can make for an efficient fight apprently. I only mention it for its creativity, but I've never seen or heard the fully detailed plan of this attack.

Did you notice how after I made a post on the temp forum Sefier anonymously would say "HE DOESNT PLAY ANYMORE NEVER GOT PAST LEVEL 60 BLAH". Heh.