Ol' Willy
Arcane
If you have stealth:I keep getting filtered by these mutant bastards down at the depot. The regular ones were piss easy with trap spam and picking off the reluctant mutties with crossbow. Now these bastards are spitting god damn vomit all over and I can do fuck. I already restarted my earlier character by redoing the build (I didn't plan to first one because I tl;dr the feat list) to be efficient, and I have all the specs planned out step by step. I'm not done exploring whatever is free to explore while avoiding combat and without extreme savescumming. I'm on hard difficulty.
Heavy trap-spam - create real death zones
Caltrops as well - throwing a caltrop doesn't aggro anyone
Find a cover - the container right at the entrance is a good choice for that, if we talk the first zone
Throw Molotovs - let them burn
If still too hard, open the second entrance and abuse leaving map and entering from the other side