A handful of thoughts--

0. You forgot about shock during ultimate roarmulus.
1. Snarbolax has negative curse resistance. Snarbolax also does a better job deflecting normal damage than shadow damage.
2. Skolver doesn't resist poison; if we're to make the ultimate loadout, perhaps shadowsun stetson would work better for uGWW?
3. Blitz needle + electron vortex are a powerful combination against the snarbolax. Could these be considered for that fight?
4. A blitz needle is also typically used for fighting vanaduke. Since this is the "ultimate loadout" thread, shouldn't that be listed?
5. Divine avenger outdamages brandishes vs the roarmulus twins.

6. Shouldn't this thread address the concept of specialization? As in, if my friend is bringing shiver, its better for me to bring blitz. Only one person really needs sentenza during roarmulus, and the slot might be better spent on nitronome. If my 3 team mates are all primarily using magma driver, my ash of agni won't see much use when fighting the ice queen.

...I like your name Mawashimono, it's pretty fun. If you were in the guild I was in, I could make so many nicknames!

Hah, anyway, this stuff is very very particular. I can't say if there truly is an ultimate gear set up for these lairs since you're always giving up something in exchange for something else (unless you have ultimate UVs, where obviously your armor is BKC + Chaos and your weapons are some brandishes, Blitz, Polaris and Shivermist).

But here's my opinion that isn't BKC + Chaos set, without UVs factored in, for a swordie that isn't taking into account of what other players are bringing into the party. These sets around balanced offensive and defensive capabilities to ensure you kill, but also survive:

-SL GWW

Armor set: Snarbolax/Skolver (I prefer the former for the poison resist, Skolver is only slightly better when you face the boss) + Radiant Silvermail.

Weapons: FF/BTB (maybe Acheron if you want to squeeze out that extra bit of DMG it has vs. Beasts), Combuster, Shivermist, and Polaris.

Shield: Savage Tortoise/Barbarous Thorn Shield.

-SL IMF

Armor set: Vog + Grey Feather.

Weapons: Glacius, Gran Faust, Shivermist, and Hail Driver.

Shield: Grey Owlite.

-SL RJP

Armor set: Skolver + Ice Queen.

Weapons: Acheron, Combuster, Ash of Agni, and Supernova.

Shield: Barbarous Thorn Shield.

-SL FSC

Armor set: Divine Veil + Snarbolax/Chaos.

Weapons: Combuster, Shivermist, Blitz Needle, and Polaris.

Shield: Crest of Almire.

EDIT: Replaced Vog with Divine Veil under SL FSC. Honestly forgot it existed.

^Oh. That's really interesting-- thanks for the update!

I'd still have to say that I value curse max + fire max + shadow max over normal max + sword damage med though... but this is from the standpoint of someone that would bring-

Mask of Seerus
Divine Mantle
Blitz Needle

As her primary setup.

Pulsar is most definitely effective in party play...for UFSC, it's all about knowing how to use it (which is why it gets a bad rep cause many people don't know how to). The knockback isn't random, you shoot the enemy, it goes in the opposite direction where the hit landed. The damage isn't bad either considering you're hitting up to 3 targets regularly if they expand. While it can blind and (I spite those who use it recklessly), in this place you should know where the enemies will fly to and do a charge attack when they stop traveling (which usually isn't far). It's not hard to predict here because there are so many slags that cushion the ones being knocked back, they actually don't fly everywhere as most people believe.

Being the absolute most effective crowd control gun in a place like UFSC, it's where it shines most where in particular rooms in UFSC where enemies spawn at the top of the area while you're fighting at the bottom. Most notable example being in D26 where slags are coming down across a sea of spikes while two sides have two Howlitzers ready to scorch you. While Blitz can makes this area easy with enough CTR, you won't find yourself having any time to use it safely in say, the final room of D27, the immobility hurts and Polaris can admittingly help you here if you can get some expanded shots. That's why I suggest that you carry both Blitz and Polaris so you get both benefits, AP isn't even considerable in SLs honestly. Even if you do carry these guns, you should be brandish spamming/swinging heavy swords far more than using either of these guns.

All the other SLs I mentioned, they're solely for shutting down turrets and pylops as quickly as possible without their retaliation. You could use Polaris to give you some space in these arenas, but again, you'd be better off spamming brandish/swinging heavy swords.

go chaos on everything, making everything blow up. Its what got me through ice queen and UFSC. :)

I think that would be better now that I think about it. Knocking back Jellies in URJP as much as possible will keep you far safer than shocking them, which could actually be a bad thing since they move quickly towards you when they aren't knocked back from the expanded shot...and shocking a Giant Lichen Colony can really wreck you in this case. I'd replace Polaris with Supernova here.

As for UIMF, I honestly don't think that even Supernova can be used effectively because most enemies close the distance you made with your shots very easily, especially the Quicksilvers and Oilers which respawn very often. It's almost futile, especially when the rooms are also just insanely claustrophobically tiny.

EDIT: After watching a solo of UIMF, the enemies don't clump together like they do in other SLs either (dumb 'ol gremlins). I really wouldn't recommend Supernova here.

@Tiasthyr That's no trap, you can go with that and do extremely well with all the huge amount of relevant resistances and Undead bonuses. If you carry along a DMG trinket or two to boost your Undead bonus, that'd be even better.

USE the Dark Retribution for Ice queen and HAMMER for UFSC