Wouldn't the obvious drawback be requiring multiple divers to operate it?
Not really?
Buggy is like that, people can just jump out. I wouldnt say it would be a drawback, but who knows.
But if a new vehicle was added which would be painfully slow im sure people would just call it in at the objective and use it there, and not really drive it around.
The anti tank emplacement with its turret tier cooldown is already versatile enough to call in at most objectives during the game.
Its good for anti air to take out gunships and dropships in bot level, great for killing hardier enemies and great at taking out most of bot fortresses if you can get a line of sight over the wall from a higher place.
Sucks for bugs tho, and its not ideal for the squids if the rest of the team isnt with you. You can kinda "fix" this if you use a turret or two to take out the trash mobs while youre using the anti tank gun.
Doubt theyl add in a new type of a vehicle any time soon, theres probably gonna be a new mech variant.
Tho a sidecar motorcycle that has a stahlwart on it would be great....
I havent used the autocannon in ages, i honestly dont like it at all in bot planets.
But that flak ammo on bugs is just so much fun.