Description: Complete all missions using the best available weapons, armors and devices. Don't fail any mission or your game is over. Use W A S D keys to move around. Use mouse to aim and shoot. Use Q to switch marines battle formation, use E to switch weapon. Use 1-3 keys to equip weapons. Use C to drop Mines, use V key to drop X-AF Decoy. Hold Shift and click to fire grenades.