Arma 2 is an open-world military simulation game developed by Bohemia Interactive.

Arma 2’s campaign takes place in 2009 in a fictional post-Soviet state of Chernarus. A civil war breaks out in Chernarus. The pro-communist forces overthrow the current government and establish a new socialistic state in Chernarus. NATO forces are deployed in order to re-establish the sovereignty of Cheranrus.

The game features realistic weaponry, vehicles, weapon ballistics, recoil and so on. Every object that is controlled by the AI is interactive such as birds and animals. All the buildings and static objects such as trees are destructible.

The game replicates real military experience where engaging in combat is not the only thing. Players have to use military tactics and planning in order to succeed.

A mission editor is also included with the game. Players are free to create their own levels and even campaigns. A scripting language can be used to create more complex missions. The editor gave birth to multiple mods the most famous one being DayZ.