Desktop: Arrow keys or W,A,S,D to move the character. Mouse to tur the character, aim ad shoot.
Mobile: Use o-scree joystick to move, fire butto to shoot, tap ad drag o right side of the scree to aim ad tur the character.

It's war and enemies have captured your base. You are the last soldier from your troop in the base so only you can fight it back. Take the rifle and get ready for the battle.