By bad, Uzbekistan, but it doesn’t make a difference. If there are Uzbeks, they aren’t a part of their military. The article is still a dim-witted BS.
Unclear on who the troopers were at this point. But several Russian-approved military pictures that have been released clearly show Central Asian troops in the theatre of operations.
The 37th MRB could then be a Russian unit stood up for commanding Uzbek soldiers/volunteers/mercenaries. It would make sense to put the Uzbeks into cohesive units and to give them a familiar and patriotic unit designation.
Kudos to the Russian Army if they were clever enough to do that.