How about this,
-has a light mg on it
-can carry troops (2 squads)
- can reinforce
- there can be an upgrade (for say 50-75 mun) that would let it heal units.
-would replace medic truck, available in the support center
- has armour/health that is higher than the jeep but lower than the m3 halftrack
-cost 450 manpower, 25 fuel, 5 pop
think this would be a great idea