It was JUST the vehicle MGs
Nothing else
Can a infantry leader direct the CMG/AAMG ?
As hongkongwargamer said, a passenger leader can direct the fire of a FG that includes the vehicle's non-ordnance weapons. He can not direct the vehicle's weapons without other passengers being included in the FG:
D3.4 ARMOR LEADERS: Infantry leaders have no effect on vehicular or Gun performance. However, a special class of leaders known as Armor Leaders can affect vehicular/vehicular Gun performance, although they have no effect on Personnel or non-vehicular Guns [EXC: either an Armor or a Passenger leader can direct a FG consisting of its CE halftrack/Carriers and Passengers/Infantry/Cavalry; see 6.64-.65].
and:
D6.65 LEADERSHIP: The leadership modifier of any CE (or otherwise exposed to fire) leader Passenger may be used to direct the fire of other Passengers in that halftrack (including their use as a FG)...Similarly, a Passenger leader may direct an OVR or CC attack in which other Passengers take part, but may not be used to direct the halftrack alone.
As an aside, it is my understanding that an Infantry leader (i.e., on foot) in the same hex as a non-moving halftrack
cannot direct the halftrack's weapons - regardless of whether it has passengers participating in the FG. The same Infantry leader, however, could help rally any broken passengers onboard the halftrack (again, providing it is non-moving; D6.651).
