When playing on Kashyyyk: Beachhead, spawn as a Heavy Trooper behind all of the barricades. Lay Mines in the doorway right in front of the Command Post. Once you have placed four mines, run up the hill to the nearest Particle Cannon Turret then run down to the bunker and kill some Armored Tank Droids. If the barricade is breached go back to the turret and do what you can to halt the enemy and if enough droids have breached the perimeter, get off and go down and defend the command post.