Here's some "brief" information about a few of her capabilities (some is copy-pasted from my messages in the SPRP server on Discord):
The gunsights would have a number of readouts, such as on the main gun sight, which has readouts for the firing solution as calculated by the GFCS, taking into account all data it does have and what data it does not have, and potential inaccuracies resulting from the lack of certain data. There'd also be an indicator showing whether or not the gun is ready to fire, as well as a range readout using information from the 120mm gun rangefinders. The RCWS gunsight would have similar readouts, as well a display of how many rounds are remaining based on how many rounds were loaded before the mission and how many rounds were fired. The fire-control computer will account for everything it can receive data for.
All optical systems on the tank are fully digitized, with data relayed from the optics to Multi-Function Display screens, which can also display readouts for different data such as range to a target.
The turret and 120mm/55 would be an autoloader system like what the French Leclerc MBT has. The turret would likely store 22-24 rounds with possibly up to 16-18 extras.
The armor would be modularized like what the Leclerc MBT uses so as to facilitate repairs, although it has not yet been decided whether or not this armor would be Chobham armor plating. The tank would, of course, be capable of mounting a variety of additional armor, including slat armor and ERA blocks.
The powerplant comes in the form of a 2000HP Multifuel Turboshaft (Gas Turbine), a 1955HP V12 Twin-Turbo Multifuel Diesel, a 1945HP V10 Twin-Turbo Multifuel Diesel, or a 1945Hp V8 Twin-Turbo Multifuel Diesel.
The "official" name of the MBT, within United Arsenal, that is, is the M21E1 Vulpes vulpes MBT-NG, although the actual official name is Renard, the French word for fox. MBT-NG stands for Main Battle Tank-Next Generation.