Enemies are coming from all directions and places so it’s time to hit them directly into the heads. Two areas, two weapon and many bullets.
This game is about being under fire. The enemies appear on various, closer or far places. If you don’t shoot them, they will shoot you. Use two weapons, a pistol for close range and sniper for some nice distance shots. It looks nice and it’s easy to play. However, only two worlds can be low.