With mutant powers by god this is easy, so go kill all the merry Leapers and climb the merry ladder. Then you should just progress, on hard this seems like Easy. When DC stops your merry infection say FUCK! and pull out your trusty SMG's and gun all the I/L. Leapers need Mutant powers to stop, Iluminanti require normal human dominance on them. You should get through this level very easily even on hard. Halos harder then this god. Find a elevator to finish the mission (Keep going through the elevators until theres one after a amount of time, you black out.) Mission acomplished HazTeam Delta and Bravo. What a sick Major those are dead!