Can anyone help me with mutant area. The task where I need to find drill part in the Junkyard area.
I already try using gun/ melee/ stealth/ psi/ gun+grenade and crossbow + traps.
Is there another way to get the drill part like buying it somewhere.
I'm at easy difficulty.
Thank you in advance
Nope, you have to go through. Below a few tips from when I went through the depot with a chemical pistol & grenades character, maybe one of your stealthy characters can use them.
The key feat was sure step, not even for the immunity to acid puddles, but for caltrops (which that character used a LOT

). From what I've noticed patrolling enemies will not try to sidestep caltrops, but instead will keep running through them, keeping to their original patrol route. So you can chuck the caltrops while they are away, then retreat and stealth again, and just watch while they slowly but surely whittle away at their health bar.
I also gave that character pickpocketing (to make use of high dexterity). After stealing all the ammo from everyone in the junkyard & SGS, she coudl afford all the crafting components for grenades and crafted as many as possible. Then bought lots of bear traps, which you can use even with zero skill. Also bought all the poisoned caltrops. Whatever could not be killed by caltrops, was blasted away with grenades, while two rows of bear traps were acting as a safety measure to keep the enemies from reaching my character in melee. Rinse & repeat.
The only problem were the turrets, but you can disable them (I think 65 or 70 hacking?) from the console in one of the underground areas. That one is easiest to reach from the "Black Eels" entrance to the depot.