Exactly this. People have been suggesting this since alpha.
Why would you change so many other things? Go from 2 models to 1, and increase the HP to 82 to compensate. That's it. No other changes. ROF stays the same (still fighting 4-5 model squads, so why change it) and camo would stay the same. Yes it would survive a direct mortar shell, but right now the mortar is an effective counter BECAUSE it's 2 models, and wiping both is required to remove the sniper.
At 1 model counter-sniping would actually make sense, rather than having the 360mp vs. 90mp risk we have right now. The 222 could stay the same and actually be effective vs. both brit and sov snipers.
The current meta in big games is pretty bad, with penal/guard blobs covering 2 sov sniper squads, which pretty much force an instant retreat to OST 4-man squads. You can't even 222-dive because of the penal PTRS squads covering the snipers. Mortars become to default counter when you need to get rid of multiple models via indirect fire.
Drop it to 1 model and suddenly ost can counter-snipe effectively, fixing that entire problem.
So just make the soviet sniper straight up the worst one hand s down with nothing unique at all. That could work.. The old last patch demo treatment- nerf it so much its removed from all play forever but still technically in the game.
Make it like the brit sniper but without onfield AOE healing, or AT of any kind, no arty, and no support abilities Except vet 1 flares which you can get on a cheaper mortar that will survive an assault and ALSO kill models outright, often multiple, and provide utilities like smoke, all for 2/3 the price. Yep. Thatll fix the soviet sniper problem. 100%. Good work guys we did it!