About the VTOL capability, current Digin_BR drawining already gives the impressin of moveble engines. But engine support would have to be a little longer for not overlapping with side weapon systems when engine rotates to vertical position.
actualy, i already thinked of that during the production of the picture...
you guys are not noticing one small, but very important detail...the engine wings actualy dont support a straight-down engine rotation...in VTOL mode, they actualy end up like this: ("o" = engines... "//" and "\\" = engine heat and propulsion direction..."O" = chasis...and "-" = weapons)
o o
//-O-\\
if you take a better look at the PROMO, in the in the edge of the wing where the engine gets rotated, you will notice that out...
and the vehicle is a bit longer, but you cant see the tail (mostly, you can see almost only a small engine on the tail...above the junctuin of the minigun body with its barrels)