"Be a sniper in this global warfare game. Take advantage of the wars going on and using your skills as a former US army sniper make yourself rich.
Shoot to kill the targets that might be hidden in the buildings or be positioned on top of it.
Use the map to locate the target and try to kill it with a head shot otherwise your enemies will know your position and target you.
Take over the battle field and kill as many enemy combatants as you can and proceed to the next levels. "