Well this is a custom model too (as you can see)---the idea comes from an old star wars strategy game called Galactic Battlegrounds---the model is quite different from the "Mech destroyer" from the rebel alliance, but that's all I can do.
About this creation
Back design---8 engines are essential to provide fast and mobility
Opening cockpit---can carry more troopers supplies and weapons
Cabin for two drivers
Missile launchers against imperial mechs and walkers