Invasion!

This is my Completed 3D shooter, Invasion! After a rough landing, you  wake up in an unusual place, the foggy, muggy and dark. You remember you were supposed to be exploring a new celestial body. This must be the place! There is a screeching noise, and suddenly you see them, all of them! Giant killer bugs! They're everywhere, coming straight for you! Aim, shoot, and fight your way through to escap…