hitting f1 at main menu = crash hitting f1 in game "trainer activated" but nothing works
also f1 by default in game loads you weapon set 1. not sure if that has anything to do with it but just putting it out there.
Cheers,
EDIT: tried again this time activating trainer at puase menu (hitting esc in-game) it activated turned on option 1 & 2 got the attention of a skeleton the moment it attacked it crash with a C++ runtime error R6025 Pure virtual funvtion call. hope this helps