Strange. Either I read too fast through this thread or we didn't mention the terrible reports about autoloader reliability yet.
Is the autoloader reliable now?

I personally don't understand why they used the Stryker vehicle for the MGS.
Its capability isn't much better than a modernized AMX-13 105mm/modernized Kürassier. They Russians have showed us that low velocity 100-120mm guns can be used for direct fire support. 105mm is not really a viable calibre against MBTs nowadays; you cannot knock out anything better than T-72 monkey models frontally using this calibre (although the best 105mm APFSDS is better than the very first 120mm APFSDS).
The Stryker MGS hasn't the same air deployability as the other Stryker variants.

It doesn't fit together imho. A BMD with 100/30mm guns turret is a better support vehicle in many terrains.
I would have chosen a path like the Japanese did with their newest MBT - a vehicle of about 40 tons, 120mm gun, tracks. That will easily cross most bridges and could be used for a bridgelayer, recovery and flail mineclearing versions as well.