I am not even going to lie, I have not even touched the actual game. I bought this because of the Day Z mod. I love games that are modifiable, they bring so much more depth and replay-ability to a game. I have no doubt, given what I see the engine is capable of, that ARMA II in and of itself is an intense gritty combat simulation, but the Day Z mod takes this to a whole other level. If you love zombie games, buy ARMA II Combine Operations so you can play Day Z! Accurate combat, a persistent world in which resources(food, water, ammo, medical supplies, weapons, etc) are limited and you have to contend with player characters that chose to be bandits that hunt other players at the same time you have to worry about zombies.

I will of course update this review when I get around to playing ARMA II CO itself, but for now I must return to Day Z...I conduct counter-bandit operations. ;)