After he pushes down a pillar, take your lancer out because that's when he'll jump down to do a chainsaw duel. Dodge the ink nades / falling pillars. Don't bother trying to kill him when he's on the outside. Make sure you don't get caught in a chainsaw duel without a chainsaw.
hes talking about when hes on the reaver.....well i just shot him in the mouth when he opens it and his arms when he grabs you....then when hes in front i jus shot him as much as i can.... --- If I were Tsquared, I would Tea Bag everyone.Twice. - Andarist
simple: dodge the missles he shoots with the left stick. and when hes shooting with the machine turret shoot at that. when he comes into to bite you just shoot at the mouth... easy as 1,2,3 --- Currently playing: WoW, Warhammer Online: Age of Reckoning, HM: IoH, Fable 2, Gears! NOW MOSTLY GOW 2