This is brutally difficult! Mostly because the tank's projectiles move extremely slow and seem to be affected by the tank's movement in an unintuitive way, so I would aim blindly in the direction of the enemies and hope I hit. I could only get as far as the brown buildings shown in the 3rd screenshot (yXvBuY.png). The war setting is a creative interpretation of the 80's theme! I also love the simple low-poly terrain and models!