Don't go into this game expecting to run around shooting everything. This game require patience, the ability to think about your surroundings and regular saves. It's common to spend 10 minutes in one position, constantly checking your Tac map, just to kill one solider. The biggest downfall is the friendly AI. Too often instead of following you like they're ordered they walk around a corner – giving away your position and getting themselves killed. Also search the net for a mod which stops they're annoying chatter. Except for the friendly AI this a great game and is expandable thanks to free mods.