Mortar’s buzzard, Boombringer needs to be destroyed to piss him off enough to bring the elevator down. Brick points you in the direction of Cramfist’s Foundry to find the hangar. You’ll first need to cross through the bandit infested Main Street Reservoir to reach the hangar. You can find the reservoir through the south of Smoking Guano Grotto. Bandits will start attacking you immediately. Cross the river once their cleared, but be careful as several threshers patrol the waters. Once across you’ll need to fight an uphill battle against droves of bandits. Use the several elemental barrels to deal some extra damage to the large groups of bandits.
Once at the top of the hill you’ll find yourself at Cramfist’s Foundry. The the hangar will be on your left marked by the objective point on your map. There are more bandits patrolling the area, but you’ll need to contend with two powerful turrets guarding the hangar. Clear out the bandits then shift your focus to the turrets. Use a rocket launcher to make quick work of them. If you don’t have a rocket launcher try using something caustic or grenades to destroy them.
Climb the steps to the hangar. You can find Mortar’s personal buzzard in the northern part of the hangar. Take out the bandits, buzzards and turrets to hit the switch and raise Boombringer up from the hangar. Brick suggests you should walk away and not look at the explosion to look like a badass. This frightens Mortar having him recklessly meet you at the bottom of the elevator when you reach Smoking Guano Grotto. No matter how you deal with it return to the elevator and prepare to ascend the Inferno Tower.
You can take a shortcut by following a conveyor belt south of the stairs from the hangar steps. You’ll need to fight a few bandits and Mortar to finally reach the elevator. Mortar has some weak shields, but his health bar high allowing him to take a beating. Use incendiary weaponry to deal extra damage and put him down quickly. Hit the elevator switch and take it up to the Buzzards Nest. Brick will bring in his slabs with the explosives, but he’s going to need you to deal with the Sawteeth’s air support. Take out the bandit on the ground before you start contending with the five buzzards. Have a good caustic weapon and make use of cover to deal with each one.
After the buzzards are dealt with, set beacons on each crate of explosives so his Slabs know what to pick up. After his troops pick up the explosives you can head back to Eridium Blight. Use the Catch-A-Ride to the right of the Sawtooth Cauldron entrance and drive back towards Arid Nexus. As you make your approach Brick’s Slabs will blow open the entrance to Arid Nexus. Go through and turn in the mission at a small module right by the entrance you came through to end Toil and Trouble. Time to hit the Hyperion Info Stockade and figure out where the Warrior is hidden.
Money: 4 eridium