I'm not a huge person for a leveling system similar to CoD. But if so many people want it, and it could be realistic by keeping rare weapons rare, then how about this....
All players start out with Nagant revolver, Luger, MN1893, K98, PPsh with drum and sticks, MP40, Maxim, MG34, sniper with low powered scope.
When you reach mid ranks, you should unlock the TT33, P38, MN38,G41, SVT, PPsh with choice of only drums or sticks, DP28, MG42, sniper with medium powered scope. The semi auto rifles mentioned would only be used by veteran riflemen and squad leaders/commander.
When you reach the highest ranks you should unlock the C96(for both countries), AVT, G41 with 25 round mag, MP41(With better melee and less recoil), PPsh that the Germans modified for 9mm(whatever its called), MKB42, PPS42, and high powered sniper scope. Most of these could be "hero weapons", meaning only 1 per team. Except for the C96 which is just a pistol, and the high powered scope which is for the sniper anyway.
So you get to "unlock stuff", but at the same time it would be realistic because rarer guns would be rarer.
All players start out with Nagant revolver, Luger, MN1893, K98, PPsh with drum and sticks, MP40, Maxim, MG34, sniper with low powered scope.
When you reach mid ranks, you should unlock the TT33, P38, MN38,G41, SVT, PPsh with choice of only drums or sticks, DP28, MG42, sniper with medium powered scope. The semi auto rifles mentioned would only be used by veteran riflemen and squad leaders/commander.
When you reach the highest ranks you should unlock the C96(for both countries), AVT, G41 with 25 round mag, MP41(With better melee and less recoil), PPsh that the Germans modified for 9mm(whatever its called), MKB42, PPS42, and high powered sniper scope. Most of these could be "hero weapons", meaning only 1 per team. Except for the C96 which is just a pistol, and the high powered scope which is for the sniper anyway.
So you get to "unlock stuff", but at the same time it would be realistic because rarer guns would be rarer.