Reviving this with the M1 Air-Ground Defense System (AGDS) proposed in ARMOR Magazine in 1996:
LINK to PDF of that issue
Armament:
2 x ADATS Launcher pods with 6 missiles each, for 12 ready to fire rounds.
2 x 35mm Bushmaster Chain Guns, each armed with a 500 round anti-aircraft primary magazine and a small 50 round anti-armor secondary magazine for 1,000 AA-AHEAD and 100 rds APFSDS total. Can be elevated from 0 degrees to 90 degrees.
This preliminary design was done by a small engineering company that specializes in ammunition handling systems, so it appears to be something designed to show off their automatic ammunition feed system and how it could work at anything from 0-90 elevation.
So far, just a single DESERT icon has been done.