Operation Flashpoint: Cold War Crisis

"Operation Flashpoint: Cold War Crisis, sometimes shortened to Operation Flashpoint, and abbreviated OFP, is a tactical shooter and battlefield simulator video game.

Set on a group of fictitious islands in 1985, Operation Flashpoint puts the player on one of three sides in a hypothetical conflict between American and Soviet forces. The Resistance is the third playable faction.

Operation Flashpoint was praised for its attention to realistic combat.
Gameplay varies significantly depending on the player's role, but the game is best described as a tactical shooter with significant vehicle elements and minor real-time tactics elements. OFP is largely team oriented and the player spends much of the game with a squad of up to 11 AI controlled members, either as a member of the squad or as its leader."

Source: Wikipedia, "Operation_Flashpoint," available under the CC-BY-SA License.