Ended up playing DMZ with this guy as a random teammate. My teammates got pushed by the Kuji crate carrier and his team mate. My teammate got knocked but managed to self revive while I kill both enemies. While I plate up, my teammate rushes their loot boxes and grabs the guys mythic armor before I could. I asked him to give it back to me and he can take everything else. He just says no and laughs me off over mic. Its guys like this that makes me question why I bother helping random teammates out in DMZ.