Vermafia Boss

First chance to see enemy is in Forsaken Scrapyard on the first shard of maps. Spawns southwest of main camp, around a fenced off area, usually with other rat enemies. He has a gray suit on, and wields a tommy gun. I killed him early before knowing to kill him as part of the rank 4 wood goliath challenge. I ended up walking to the area to check if he was there, if not walk back towards camp and get out of goliath to have an enemy kill you. After you respawn just go pick up your gravestone, and check if he respawned. If he didn't just kill yourself again, I had to do this about five times before he showed back up.