Act 2: C4 - Sinking Feeling

Pretty epic stuff. Move up and grab the ammo, and keep going until you see a new enemy type, the Bloodmount. Should just be two civilians for this fight to not hit; and at the bottom of the slope is ammo to the right. Engage the mount at the bottom by aiming low, which should knock the rider off and then you take him out.

Move up and take cover as you engage the scattered enemies, some which are snipe-able. Before you leave this narrow area, go right and take cover at a barrier and snipe the sniper to the right. Should be a second bloodmount at some point, so do the same; and keep your eye out for frags and ammo if you need them. There is also a mortar if you want it on the left side.

Go around the middle part with the burning rubble and the ammo box and head for the slanted area where there is an ammo box, a Gorgon pistol, and a statue in
a corner. Look on the ground behind a car for a wanted ad. Come around the central debris and a reaver drops in. He will stay around where he lands, so run back to where you fought all the enemies before and I took cover behind a van. From there I just sniped the riders then the beast. Ammo all around as you move up and around to get radio contact.

Sniper ammo on the ground where you get the message, shotgun if you want it further up, and then an ammo box on the left. Move up to the next area where a Corpser makes a path for some enemies, so snipe as many as you can, mainly the Boomer, then go left to the corner with all the ammo. Snipe drones until a reaver drops in to the right and pour ammo into him, then kill anyone left.

Go down and into the building for a scene. After that, turn around and hide behind the broken wall as you fight off the ambush and just survive until an old friend saves you yet again.

When inside, go left and around the building for a COG Tag by a body. Ammo and then move out into the graveyard where a reaver drops in at the middle. Either take cover at the foot of the hill or make a run for the top, just don't let him smash you. Then make your way to the bridge where you'll fight off two drones and then a Kantus. Ammo on either side at the top, then proceed.