Use your sniper to stop the bastards from hurting the forrest. Earn money and upgrade your weapon (Headshots earn you the most). If you see a red glow on the left of your screen it means they are cutting down the trees. Move your scope to the left or zoom out to see where they are.

Instructions:
Press "Space" to zoom in or out. Click the left button to fire (when zoomed out this will make you zoom in).
Press "R" to reload.