Tap the screen to begin your mission against the zombie horde. Navigate your special forces soldier using the movement controls on the left side of the screen. Aim your weapon by moving the crosshair on the right side. Attack zombies by pressing the fire button. Refresh your ammo when the ammo count runs low to avoid being defenseless. Use special weapons and grenades by picking them from your weapon wheel. Withstand waves of zombies to advance through the game. Watch out for special zombies with different abilities that require tactics to defeat. Achieve objectives to earn new weapons and upgrades for your soldier.