|Merle Briggs, Silver Lake Trailer Park or US Auto||600 RP, The Death Wish unlocked in shops.|
There are two ways in which you can begin this mission. You’ll find Merle initially at Silver Lake Trailer Park located north of Rae Rae’s Pumpkin Farm, he’ll be under fire from some cultists. After you take care of them, speak to Merle to begin the mission to raid US Auto to find his truck. For more details on how to clear the outpost undetected, head to this page.
Alternatively, you may have already cleared the Outpost before even talking to Merle in which case you’ll find him drive in upon liberation.
Reach Golden Valley Gas
However you start this mission, both paths converge here where you’ll discover the truck is nowhere to be seen. You’ll need to go down to Golden Valley Gas located east along the road where you’ll need to steal the truck back. You’ll want to bring a vehicle with you so that you can give chase, any will do from the nearby Garage shop at US Auto but if you’ve already finished The Widowmaker then by all means take that beast to make this task easier.
Retrieve the Death Wish
Once you approach Golden Valley Gas you’ll find the truck filling up with a VIP cultist inside. He’ll only be there a short while before moving on again so you don’t have time to plan an elaborate heist. Although you can go in guns blazing, it’s more in your interest to wait for the truck to drive away from the gas station (and numerous cultists) and give chase in your vehicle of choice.
Beware: You’re not trying to destroy the truck here, you just want to defeat the driver and then commandeer it yourself.
You’ll need to cut corners where you can and then try and throw your vehicle to cut him off the road. Be prepared for a battle when the truck does stop, the VIP cultist has a shotgun that packs a punch and will take quite a few bullets to put down. Once defeated, claim the Death Wish amongst your spoils and head back to US Auto.
Drive Merle to the Construction Yard
Pick Merle up at US Auto, he’ll be manning the turret while you drive to the Reservoir Construction Yard, located to the northeast.
Smash through the cult supplies 
Merle is ready for revenege and you’re going to help him by destroying the cult’s Bliss supply here. Keep your speed up at all times while you drive through the green boxes (the Bliss supply in question) as Merle mows down the cultists.
Once the supplies are taken out, defeat any cultists that may remain in the area from the safety of the truck or on foot, whatever is most convenient. The mission will conclude upon securing the area and you’ll add the impressive Death Wish to your growing collection of vehicles.