Mahkra Fishpacking

Tip: This is one of the good locations where you can gather Aluminum.

Outside the building, there’s a separate room with a broken window with a raider corpse. Loot the Mahkra Facilities Key from his body and use it to open the door of the room he’s in. You’ll find fragmentation grenades from the crate and the Robot Model Kit beside it.

The upper floor is filled with raider corpses and no items of interest except for the Nuka-Cola Quantum in the crate inside the truck. Find the button behind the truck to call the lift up. Ride the lift down and prepare to battle some synths.The double-door containing the red steamer trunk is chained to the other side.

As you go deeper, you’ll find some Aluminum trays in the conveyor belts and shelves. There’s a room above the conveyor belt where you’ll find the first set of aluminum trays. There’s an expert security door there but you can get the Mahkra Facilities Key from the raider corpse nearby and use it to open the door.

Along the conveyor belts, there’s a protectron pod and a nearby Novice terminal you can use to activate it. Be careful not to get stuck in the conveyor belts.

When you reach the packaging area where the conveyor belts leading up the ramp, continue past it and go under the ramps to find an Expert safe. There’s also a copy of Tesla Science on the table beside the mattress and raider corpse. Continue up the ramp and you’ll finally reach the red steamer trunk and unchain the double door.