I used Line gun, Plasma Cutter, and the Pulse Rifle for when the tentacles grabbed me....
And not trying to ruin it for anyone, So SPOILER WARNING!!!
Was anyone else kinda pissed at the end of the game? I mean, you survive all this stuff, fight through hordes and hordes of horrible nightmarish creatures, and he's dead in the end. It was a poetic death (his girl friend killing him when all he was trying to do was save her and his own life) but still I was angry that after all that shit he died.