Kill Octopus: Use Night Vision find her and kill her with any weapon of you choice
Kill Raven: Climb to top of tower switch to night vision and keep shooting do not zoom in it takes to long n she frags you.
Kill Wolf: Use Night vision and stealth if you have it hide under truck in front if low on life.
Kill Vamp: Headshots take him down in one shot, CQC n press Triangle to syringe.
Kill Mantis: Snipe the orange doll n pick it up before she does, use it on her to win.
6th play-through, all items etc.
500 million dp :P