Among all these above I see the EMC-81 variant for first time. Did that turret was to have a breech loaded mortar?
P.S I had seen the Serval 60-20 turret in AML variants way back.
Yes, the Hotchkiss Brandt HB-81, that could be breech-loading or muzzle-loading, both ways.
The turret is a 360° one, and the mortar have a range of 7000 metres. It could also fire a direct-fire antitank round, obviously a shaped-charge one, with a range of 800 metres.
An interesting weapon, perhaps too 'small' for a useful use on battleground.