The game is riddled with small bugs, like you can knock the phone off the rock in the first level bunker then the cut scene will have him picking it up.

Having the trigens fight the people throughout the game was fun, and stealth aspect as well.

It's funny how the game emphasis seemed to be on the realistic mode, but it's like it was only tested on medium - the trigens would die very quickly and easily on realistic if the guards shot them, if I had to guess probably the bullet damage is turned up on that mode.