Yeah so here's the idea OK, Arbiter is ordered by the Prophet of Truth to get some key so he can do the Hula Hoop covered with AIDs. Sounds easy right? Your dead wrong. First off the Sentinel army has taking over this
good messy piece of shit real estate and don't want anyone in it. So they put up a shield to keep Tartar Sauce out. Now the AIDS have taken over and turned the place into a giant shitstain. You pretty much get no help in this level so you gotta roll around at the speed of sound the building untill you can get those shields down while Tartar Sauce flies around in his comfortable flying shit-shooting UFO called a Phantom.
Though you do come across some Jackholes and Grunts they don't last long against the deadly AIDS attack, although the Grunts will, because they have Gruntiness. There are HUMANS in the level as well but you never get to fight(unless you use the Super Fart Skull.) because of the AIDs. Notice how the AIDS keep ruining the whole level, find the cure [Guess what! It's gruntiness]. The building is a maze filled with blood and enemies and an unusual number of Shotguns. You also find gold Sentinels and and the Big Daddies around that try to ruin Arbiter's killing frenzy. But this is all after the shield is brought down.
When you escape you'll find some Elites being knaves outside in the snow: they're making snowmen and doing snowball fights with the AIDS. The Arbiter needs to get through this snowball fight to get to another valley where moar Elites are milling around like chickens. All the while they need to hold the AIDS till the Phantom can arrive, though it's already there just watchin you and the Elites fight for your lives. Tatar Sauce then gives you the bill for tresspassing from the sentinel's lawyer and then runs of with a big bag of SWAG and Gruntiness.Tartar Sauce is an asshole ain't he.