i wanna look my enemy in the eye (through a periscope). also an autocannon or missile launcher can optimistically take out aircraft. maybe put a big 120mm or less smoothbore in the turret (that can launch missiles also) for direct and indirect fire. plus no reason i couldn't put a mortar/drone team in the back instead of a standard infantry squad. armed trucks will always be cool tho i just want more hatches and periscopes around me personally. otherwise if ur going lightweight and indirect put whatever weapon system or drone launcher you want on a dune buggy i say. you just can't hotbox a sandrail as well.

Can a truck's chassis even take the recoil from a 120mm mortar? I've been parked next to a 120mm mortar in an M113 chassis before and watched it kick the hull into the ground every time it lobbed a basketball downrange.