No, just the melee ones should have the enslave function. Thats to represent the melee dudes are the ones going out bonking heads to capture and dip, while the others are there to kill. Thats why the Vats Wonder spits out a mutant melee every 30 turns. So you do not lose the melee units as your troops upgrade to a higher form that cannot enslave. Well I am trying to keep this as close as I can to the RPG's, so the Hummer had to go.