Perfect control; Go to the control point in the corner with the turrets lay down some mines and keep scouting this area. It is very good at defence and is the hardest control point on the map. Go on the roof next to the CP and look around from their you can get some good shots with just a normal trooper.
It makes it easier if your losing coz the enemy always try to take it back.
It might work on multiplayer especially if most of your units are thier the enemy will never get close enough to take it back.
This works on all reign's