At the moment, trucks can spawn soldiers. That is, they partially cover the functions of an engineer. But what if we give them more engineer functions?
In general, I propose to give the spawn menu a choice of truck load options:
Troop spawner;
Trailer with a big anti-tank gun;
Trailer with a big anti-aircraft gun;
Truck - a big ammo box.
As you understand, the spawn function of the troops is deprived of all variants of the truck except “troop spawner”. It is also necessary to add the functions “unhook the cannon” and spawn a transport squad in a truck that you previously left on the battlefield. To make it easier to move to the next point. (or if some dumb asshole moved your truck closer than 50 meters to the point with his stupid tank)