Didn't Belarus have mass conscription? IMHO a large portion of Belarus men should have proper training to handle a weapon and squad/platoon tactics from their mandatory army year (or year-and-a-half). They don't have a lot of weapons, though.
But if most of them were willing to do that, then the same motivation would apply for the conscripts who currently make up the army and do have all the weapons required, so that would be the scenario of "internal coup" with army turning against Lukashenka; but we as far as we see, neither the army nor the general population are currently eager for violent action, so things would have to get much worse before they might reconsider.
But if most of them were willing to do that, then the same motivation would apply for the conscripts who currently make up the army and do have all the weapons required, so that would be the scenario of "internal coup" with army turning against Lukashenka; but we as far as we see, neither the army nor the general population are currently eager for violent action, so things would have to get much worse before they might reconsider.