Activision’s Call of Duty series is once again heading to your mobile devices, but instead of being a first-person shooter as fans would expect, Call of Duty: Heroes is a 3D combat strategy game that features heroes from the Call of Duty: Modern Warfare and Call of Duty: Blacks Ops 2 titles.

Call of Duty: Heroes is a free-to-play titles that gives players the ability to customize their base, train elite forces, and take on a number of enemies along with friends and other Heroes players. Players will start by taking command of a small outpost, which they’re then tasked to build and upgrade it through the utilization of a number of equipment and weapon options, which includes sentry guns, SAM turrets, and mines. Players can also boss around and upgrade five legendary Call of Duty heroes, such as Capt. John Price and Sgt. John “Soap” MacTavish. Killstreaks are also available in Heroes, which include drone strikes, care packages, chopper gunner, and UAVs.

Instead of fighting against other players, Call of Duty: Heroes allows players to team up with their friends in order to donate troops, form alliances, and take down opponents together while earning in-game rewards for doing so.

Call of Duty: Heroes is available starting today on iOS and Windows 8 tablets, while Android owners will have to wait shortly after this initial launch.