Bradley ADATS, the US Army was going completely in for this, had it all lined up and everything, manuals, training pipelines, you name it, it was pretty much set up... then the Cold War ended...
That was the M113 variant of the system. Then again, it is considered cancer in WarThunder.
I could see the Brotherhood of Nod in Command and Conquer: Tiberian Dawn using this on both vehicles (and the Allies using it in Red Alert on the M113 APC chassis), in a more realistic portrayal of the First War.
It's interesting food for thought...