the possibility's are endless,
u can place so much stuff on such a vehicle.
for example :
Refuel module,
Repair module,
Vehicle ammunition module,
HQ Module,
Troop transport module,
Anti air module,
Radar module,
Flatbed module to transport vehicles.
It add's a completely new gameplay to the game (logistics)
Be aware, never leave base without protection from an armed convoy.
But a very important multi purpose role in a war so why not in the Armaverse.