GMG tactics involve striking quick, at the enemies heart, then sneaking out; its how they beat back Rheinlnad. An albie is imply to big to do that, and would be a target, GBs, however, could simulate that with small numbers, as that is kind of similiar.
Also, GMG would never be assed with the large repairs that come with the albie, due to the terrain they operate in, also, IMG GB is one of the best if you know how to use GBs, due to its tiny shape from the front, and KU Explorer isn't even really a GB, just a heavily armoured exploration vehicle
