Run trainer as administrator and start a solo survival mode. Start the game in window mode "Frameless" or use "ALT + TAB" and choose what you want.
Trainer can also be used in "Mission" and "Chaos" modes.
Tested version: 1.9.461
today I wil post here this awesome tranier by Phuc Dat. Enjoy it.
Anti-Cheat Bypass (Games no longer recorded)
Walk Speed Modifier
Unlimited Ammo For All