This fight is very difficult if you do not know the best tactics to use. First, there are four health packs in the area, one by the ammo box where the cinematic/checkpoint plays, one in a pool of water on a broken area of the steps, and two on the walls at both sides of the entrance to the memorial. Do not use any of them on your first try. If you do and you die, they will not respawn for future attempts from the checkpoint. Another thing to note is that the ammunition box will restock your Frag Grenades. Therefore, use it immediately and you may be able to return for more later. The first wave of drones is best taken out from long range and behind the partial cover of the wall at the checkpoint with a scoped weapon, preferably charged shots from a Strike Rifle. If you don't have one, you can get one from a downed Drone as you advance. Proceed forward and make sure you hit the pair of rolling kamikaze Ther-mites from a safe distance. Once you get close enough to see two of the active conduits (you may want to take cover behind the highest set of sandbags), there are two good methods for taking them out, but the SMAW rocket launcher provided is not one of them. The long reload after each shot, as well as the splash damage if you accidentally hit a pillar or Drone at close range, will most likely get you killed. If you still have the HVS45 Prototype Pistol from earlier in the level, use it to take each one out in a single shot (and a few Drudge as you go); otherwise use charged shots from your Strike Rifle. Fight your way inside (do not forget about your grenades or the health packs at the entrance), and use either the HVS45, Strike Rifle, or Frag Grenades to torch the other two conduits. After you clean up the remaining Drudge, you will get another message (and a checkpoint) stating that you have been sent a rescue chopper. Pick up any health units available if you need them and go outside. You can pick up the SMAW for this part if preferred. Two human enemies will appear. After killing them, go down the stairs. Do not forget about the collectable disc to the left. Drones will jump out of the water. You can either pick them off from the safety of the memorial, or you can go after them and use the health pack and ammo box (more Frag Grenades) from the beginning of the fight to help. After you take them all out, go to the helicopter to finish the level. If you are still having trouble under the Guarded or higher difficulty setting, you can always switch to Low difficulty for this fight.