Your mission in this shooting game is to neutralize as many enemy units as possible, preventing your base from being destroyed. Choose your rifle and use your sniper skills to protect your base. Survive for 25 waves and you will get a medal. Use YOUR MOUSE to aim and shoot. Aim in front of moving targets to compensate bullet flight. Press 1-3 NUMBER KEYS to swap weapon. Press "R" KEY to reload and "F" KEY to switch fire move. Good luck!