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1 - Arrival

This tunnel continues on for a short while after transitioning from the Therum: Surface map.


2 - Geth Rocket Troopers

Two Geth Rocket Troopers and one standard Geth Trooper will open fire on the Mako as you emerge from the tunnel. Lay waste to them.


3 - Footwork

The Mako can't drive over this pile of debris, so you're going to have to hoof it from here. You'll also notice that your radar is jammed, so it's pretty obvious that you'll be running into some resistance up ahead.


4 - Geth Rocket Troopers

Another round of Geth Rocket Troopers and standard Geth Troopers will slow your progress through this ravine.


5 - Heavy Resistance

When you reach the camp outskirts here, you'll find yourself under attack by Geth Shock Troopers, Geth Rocket Troopers, and at least a couple of Geth Snipers off in the distance. Move slowly and use the available cover or you won't last long.


6 - Mining Camp

As you walk into the seemingly uninhabited mining camp, a cutscene will begin that shows a strange type of Geth clinging to the bottom of the catwalk above your head. The Geth will hop across to the wall to your left, just before a Geth ship does a fly-by and drops off a small contingent of Geth soldiers. In all, you'll be facing a Geth Ghost, two Geth Stalkers, two Geth Snipers, a Geth Shock Trooper, and a Geth Armature. Spotting this new type of Geth will unlock the Geth: Hoppers codex entry just as the battle begins.

Expect a fairly difficult battle here. The Hoppers are able to project a beam that can end your life in a single blow, so don't give them a chance to hit you with it. You also shouldn't be afraid to fall back to whatever cover you can find in order to pick off the easier targets from a distance. The Armature can withstand a lot of punishment without the benefit of the Mako's weaponry, so it will probably take you awhile to bring it down. When you've finally cleaned up the lot of them, head into the mining facility at area #7.


7 - Exit to Ruins Interior

Pass through this reinforced doorway to reach the Therum: Ruins Interior map.