AI troops refuse orders to enter Mohawk as a passenger.
Upon receiving an order to mount, AI troops will take Pilot and Co-pilot seats if open, but aside from those two AI, the rest will congregate about approximately 5m to the front left of the chopper, and report "Cannot Comply" after a short time period.
I know Joris-Jan van 't Land leaves his gym socks lying around back there, but seriously, we've bought some Febreeze and everything, I don't know what these AI are bellyaching about!