Call of Army - 3D Game Redefined

Call of Army is an Amazing shooting played in mars...? I put NASA scientist , the scientist are reaserching in mars. The player has to fight with zombie, alliens and enemies.. I provide all weapons and med pack...... As the player move forward in the game ,u will get good weapons to destroy enemies and complete level. Hidden secret place is there where i provide flying jet... Amazing game experience awaits you..