Storm Ops

Your enemy is attacking your base. Shoot down as many enemy units as possible, preventing your base from being destroyed. Survive for 25 waves to get a medal. The game won't end there, you can play as long as you want. Use mouse to aim and shoot, 'R' to reload, 'F' to change firing mode, 'V' to peek over the sight, number keys 1-3 to change weapons, 'Q' to use last used weapon.