Act 3: C1 - Dirty Little Secret

Go left and feel free to explore if you want, but as soon as you see the front door, just go in. Inside, just empty rooms on the left, so go right and up the corridor. Two rooms on the side, one with a shotgun if you are somehow out of the other two guns, and then Boltok/Gorgon ammo in the second - get the Boltok if you don't already. Approach the door for a scene.

*NOTE: The Gorgon ammo isn't such a bad idea since you'll get infinite ammo for it in the part you'll use it. Still a bit hard to use though.*

Follow the path until you find the flamethrower, the Scorcher. Swap it for the Longshot, then pull the lever at the back. Come back two rooms and look for the switch on the wall on the right to open the garage door. Go through and you should stay with Dom. The flame gun is good when Dom is not in front of you and the enemies are at medium range, but it's a terrible gun up close. So I'm saying that for the 20 wretches coming up, don't be afraid to use the Lancer for long range and melee combat. The scorcher applies burn damage, so you have to keep firing it until the enemy dies. There is ammo up top and down low in this first part.

A few may get caught up in places, so look around until the music stops, but save those ammo boxes unless you're out. In the middle area, find the valve and turn it using the A button to simulate the actions it takes to actually turn a valve. Go out.

Now the dramatic box carrying segment which will surely be a staple of gaming. Move up and get on the lift in front of the door and you'll soon get up. You can aim while holding this, so do that as you walk into a wretch ambush. Yes, turning is hard, but you can do melee attacks; you could also try just shooting while facing the enemies, that works a little. Approach the door across from the one you just came through (not the way you came), and fight more wretches before adjusting the box to carry through the corridor (you will not be the only one slowly turning it to fit as the music plays in the background). A few times wretches will fall from the ceiling, so be ready and take this bomb to the door.