Read the Arma 2 review

A ultra-realistic Mil-Sim, that is not for everyone as there are many complex mechanics and controls to get used to. This combined with Operation Arrowhead will allow you to play DayZ.

An excellent free-to-play open world survival zombie game. Basically its a combination of Rust and DayZ.

This game is a bit boring by yourself but if you have a group/clan to play with you can have alot of fun with the game and enjoy much more successful raids and clan wars.