Just build as many rocket towers as possible (press 5) to block them (make them move in "one" farthest way) , use the sniper rifle for far range and damage !! --> This strategy is good if the map has higher terrains... (I usually play in hard mode)
__EFFECTIVE IN survival whatevr just block ur self witch barricades like this |_|00 - you by using the commander and his special knife skill |_| barricades
1. put a single barricade 2. shoot the left side (your must be in diagonal) 3. QUIKLY PUT A BARRICADE IN DIAGOnal form 4. if u get it right u will be INvincible 5/ enjoy
