The player takes on the persona of a new Advanced Tactical Legion for Allied Security (ATLAS) recruit, an international military alliance.

The multiplayer options include Infrastructure, Ad Hoc, Hot Swap, and a unique feature called Transmission mode, which is somewhat similar to the play by email system of older PC games.

Fighting works similar to other games in the genre but had many unique elements which included the ability to destroy terrain, reduce and eventually destroy cities, special buildings that could call in attacks from off the board, such as Airstrikes, Napalm Launchers, Satellite Lasers, EMP and concussion blasts, stealth units in every terrain type, as well as the ability to stack units in a single tile.

[2] Field Commander was the first PSP title to receive a perfect score from Official PlayStation Magazine.

[citation needed] Review aggregator sites GameRankings and Metacritic gave Field Commander 79% and 77/100 respectively.