Marauder

[Airlift]

Having three people in the marauder is not an advantage in most cases. A full squad of people make 5 of the other jeeps, but only makes 3 Marauders and someone has to find another ride.

[Rincewinddw]

Since it requires an extra person to be efficient than the others, it takes away a person that could be doing something else, and also it is probably harder to hit people with then the other two.

[Warborn]

The Marauder's mortar on the back fires in an arc. It's difficult to aim over long ranges. The Thresher and Enforcer both have weapons which fire in a straight line, without any firing arc. Meaning, they're very accurate over a long range. Therefore, they don't get a 12mm gun.