The MX is a scaled up XT, crudely its as if 4 XTs were put together. Most of the internal structure is given up to a cargo hold and a landing bay which can carry up to 4 tanks and deploy them using 2 ramps in "less than a minute after landing" it is claimed.
The MX is part of a multi-ship strategy by the Dinos which includes Provider-EDAs and SX-98s to massively increase the military transport and amphibious warfare capabilities of the Dino Army. As for the Provider-EDA the first Dino built version is nearly completion. The Dinos are considering increasing the order to "double figures".