This mission requires that you give you team cover fire, the central part of the bridge is open from three sides to attack. A mine thrower can be of great help as well as a jet pack. The guy with the jet pack should have good armor and jump up onto the wall near where you start. When he is up there you can then target the Ee'Ther and Pyr'Coo waitgin for you in the middle with the mine thrower. Ammo for him should not be a problem as there are 4 ammo chest on the mission.
Try to keep your guys together and through the same spot in the wall. The other spot whould have a mine thrown in front of it to kill the guy's coming on from that side before they get a chance to shoot you.
This would be an easy mission if there weren't so may Ray'Ther at the bottom waiting for you. You could just have jumped to the end, but that is not the case so you need two guy's to go down the ramp or one guy with a minethrower.
You can buy THESE weapons before the mission.
You can buy THESE Special weapons before the mission.