I knew those Extra guns on the Fan CG'sand model were bogus, and the Turret was to big. I feel confident in saying I told you so on those.
Note the Western Style Faceting of the Hull and Armor compared to the rounding and steep angles of Traditional Russian tanks.also the mix of Slat armor and ERA.
also note the rear man's hatch behind the driver spot It looks like the Gunner's hatch cant clear the Turret in the forward position I guess he would have to turn the Turret to the side to exit through that.
And the Commanders MG does not look like It clears the Commanders Sight although It might if the MG turret could rise. it looks like the MG is slaved to the Commanders sight so they traverse together.
I am guessing that slit is the Coax looks likely to be a continuation of the Same Mg configuration with a 12.7x108mm MG in the remote weapons station and a PK series MG in the Coax.
Looks like they kept the extra fuel tank system on the back of the tank and possibly previsions for a log.
I wonder what the commanders station looks like? Does he have multiple screens or a single display?