ARMA : Combat Operations

e campaign in Armed Assault takes place on the fictional Atlantic island of Sahrani, a nation which is divided into a northern communist regime (called the Democratic Republic of Sahrani - DRS) and an oil rich southern democracy called the Kingdom of South Sahrani. The narrative begins with United States forces, after a few months of training in the south, leaving the island. The northern leader uses this moment of weakness to attack the rest of the south. The player takes on the role of one soldier in one of the platoons not rotated off the island before the conflict began. The platoons aid the Royal Army Corps of Sahrani (RACS) in fending off the more powerful neighbour's offensive being spearheaded by the Sahrani Liberation Army (SLA).

The campaign follows a linear storyline. However, each level in the campaign has options for the player on how to progress through the mission. The player's in-game performance and choices determine how the storyline progresses and ultimately will have a bearing on the war itself. For example, a mission to seize a crucial town can have a substantial effect on the story depending on the player's level of success or failure. Failure to successfully complete an objective does not result in the game ending but will affect the storyline. Hostile squads act independently of the player's actions so that they may be engaging in an activity dictated by the game AI that does not necessarily involve the player. This implies that the game has high replay value as no two games will be identical.