The steps are in the description of the video...but I hate when people create guides and it is just a video.
Step 1: Start Case 2 or 3 (i like case 3 because it is light out and Paula is on the load screens in Case 2 blech)

Step 2: it is not necessary, but having several traps in your inventory will make this easier. For this video for convenience I just buy Tripod Zappers from North Peak shelter, but I prefer Lanterns. You can use any trap you prefer, even boomboxes, or no traps.

Step 3: Drive to Old Town (near center or west of Old Town)

Step 4: Rescuing Survivors creates a checkpoint. (i dont think sabotaging Obscuris or collecting exosuits from Obscuris creates checkpoints) You will want to create a checkpoint near mid or west Old Town. For convenience, it is best to be holding your trap when opening the door to rescue the survivor so the checkpoint remembers what you are holding. I once made a checkpoint where I had traps, but I was holding a bat or something, and I had to scroll through my melee weapons to get to the trap each time i loaded a new checkpoint to farm. Again, you don't need a trap, it is just for convenience, and it can be any trap.

Step 5: After you free the survivor, reload Last Checkpoint from the pause menu. You should start in the shelter.
Step 6: Run to the Weapons Locker and collect scrap by opening the 2 lockers inside
Step 7: Run across to the Vehicle Garage and collect scrap by opening the 2 lockers inside
Step 8: Leave through the garage doors and run Left/West and then North to the muscle car, get in and drive north to the 3 atms. (you dont need the muscle car but it helps save time or if you don't have infinite stamina)
Step 9: get out of the car, place a trap somewhere, and collect the 3 atms (you do not need traps)
Step 10: get back in the car and drive North to the Intersection and East (turn right) until you get to Cochrane's
Step 11: Go inside, place a trap, and collect the atm on the left of the front door
Step 12: Go upstairs and collect the atm at the opposite end of the stairs
Step 13: run back to the stairs to the wall and hop down, go downstairs and collect the basement atm
Step 14: Reload last checkpoint and repeat

The timestamp is 4:55:31
This is a link to 3 atms or 6 atms.
you start with a car nearby so you dont have to worry too much about health or stamina. you can just do 3 atms and reload, or do 6 and reload, and skip the lockers in the shelter


The timestamp is 2:31:30
This is a 2atm money loop in Case 1. I used this a LOT but atms sometimes give 0

Lockers ALWAYS give scrap; ive seen Low=300 High=1900.
ATMs can give 0 scrap. I have seen Low=2000 High=6000.