Logan is accompanied by two prospectors and was hired by the Crimson Caravan. After realizing the massive radiation in the area, he resorts to laying low in the NCR storage area (The NCR storage area is located on the westside of Camp Searchlight in the ruins of a church) and is looking for radiation suits.
Wheel of Fortune: Logan and his group of mercenaries want to search the town for loot, but will die without radiation suits. He needs someone to bring him some. After bringing them to him, you join him on an expedition to the Searchlight fire station to try and recover more NCR equipment. Upon bringing all you can find to him, however, he betrays you, whereupon you must kill him.
If Boxcars is killed in Nipton, Logan will not engage in conversation, even if Boxcars respawns.
If, while performing the quest for Boxcars to free his buddies from the Legion scoutcamp and you have freed the two captive/bound Powder Gangers, you kill them while they are running away; Boxcars will not acknowledge the quest as given by Logan and hence the quest gets stuck/bugged. A solution for this bug is to kill Logan for the keys to the Fire Dpt.