Given the U.K's armour system for Afganistan was heavy(to the point of burdensome), and you also couldnt shoulder your rifle right while prone, its probbly a good thing it wasnt a convetional military and standards varied quite a bit. Also i think the U.K has the record for the most recent legitimate bayonet charge and it was in that war funnily enough. (they fixed the armour things at various points, i forget when/which gen of osprey it was)
The dynamics for russia is largely going to be mobile warfare, its more open ground than built up. and then the built up areas are going to be fortified, and backed up with armoured vehicles, aircraft etc and there is going to be a lack of concern about civilians, so less need to breech buildings**, or not just throw Fragmentation grenades into them. (that and if i recall, Russians buildings tend to be pretty resistant to grenades, so it would be more applciable than in some other places, at least the apartment blocks) The recent urban dealings have basically highlighted failings in training it for some countries, it doesnt need to be your focus* unless thats what you expect the war to be like, but you should also cover it as everywhere has some form of buildings. Hand to hand comabt is like the last thing in the scale of likelhoods, even in urban fighting, more like to get shot, or have your building be missiled, or have a tank fire into it etc. and then your more liekly to bayonet them stab them or beat them with your rifle than go bare handed.
Oh on that, part of the point of miltiary combatives is and if its true, the U.K found that in WW1 soldiers with some combat sport education did better on average in hand to hand fighting/trench attacking than ones that didnt, so thats the cover there. Give everyone a minor education in it, increase the odds of them wining in close combat. (granted i dont think it can be ********, like if you teach them to throw chi balls they are probbly going to die when somone shoots them) You can not generalise them though, they can be fully fleshed out complex systems, or just exist to increase aggression and give you a gloss over on how to fight. I recall reading a US army one, and the bulk of the manual was rifle retention, then retention of pistol, then knife/other weapon like that then the last part and least covered was bare hands.
*Unless your a specilist for urban warfare, but then you are probbly lacking in other military skills due to it.
** Breeching in the more police sense than the military one. In that you dont use a missile launcher to blow a hole in the side of the building then throw grenades into it and clear it. Or dont call a plane to drop a boomb on it etc.
