1) Do some orcs have a hidden weakness that only becomes visible and active when they're made warchief/overlord? Such as becoming dazed or terrified when their bodyguard gets killed. 2) Do the warchief/overlord's orc gang counts as bodyguards or only the -orc captains- that are assigned as "Bodyguard"? 3) I notice these weaknesses mostly appear if I have a very strong warchief/overlord with no weaknesses and I appoint some similarly strong captains to his "bodyguard". Has anyone noticed if letting the system pick the bodyguard assignments reduce the chance of these weaknesses appearing?

I have some orcs I recruited from online sieges. Some I got a whole team from someone's boss room bc they're very strong with no weaknesses. But when I try to set them up together on my own tower, suddenly one of them develops a fear to their bodyguards getting killed. Grr