Assault BR V => DP-29 → Maxim-Tokarev
Assault BR III => Madsen → DPM
Anti-Tank BR III => PTRS-41 → M1 Bazooka
Anti Tank BR V => Panzerfaust 60 → Panzerfaust 100
Mortar BR V => RM40 => BM41
Anti Tank BR V => Panzerfaust 60 → Panzerfaust 100
Mortar BR V => GrW36 → GrW42
Assault BR V => MG34 Patronentrommel → MG42 100
Anti Tank BR III => GrB39 → Panzerfaust 60
Anti Tank BR V => Panzerfaust 60 → Ofenrohr
Mortar BR V => GrW 36 → GrW 42
Scout BR III => G98 → G43 Sniper (it should be BR3 let’s be honest)
Scout BR V => G43 → FG42 Sniper II
Give them upgraded magazine size for OG-43 at BR2 and above
Assault BRIII => ZB-26 → MG34
Assault BR V => MG34 Patronentrommel → MG42 100
AT BRV → Panzefaust 60 → Panzefaust 100
Mortar BRV => GrW 36 → GrW42
Scout BRV => G43 Sniper → STG44 Sniper
Flametrooper BRIII => give 50 more ammo for two of their flamethrowers of total 150 instead of 100
Assault BRV => Johnson LMG → M1919A6
Anti-Tank BRV => M9 Bazooka → RPzB. 43 Ofenrohr
Assault BR III => BAR M1918 → BAR M1918A2
Assault BR V => BAR M1918A2 → M1919A6
Scouts BRIII => Springfield M1903 → Lee-Enfield 4
Assault BR V => M1 Thompson → Hyde M1944
Anti-Tank BRV => M9 Bazooka → RPzB. 43 Ofenrohr
Assault BR III => Bren → BAR M1918A1
Assault BR V => Johnson LMG → T20 with large ammo bag ammo pool
Anti-Tank BRV => M9 Bazooka → RPzB. 43 Ofenrohr
Assault BR III => Type11 → KE7
Assault BR V => Tokyo SMG → Vickers
Scout BRV => Removed class replaced with Rifleman BRV → Type Hei Automatic x6 with large ammo bag ammo pool + 5x Rifleman + 1x engineer
Screw that p2w squad nerf shield HP to 5HP, they don’t deserve any buff. 
I would also remove 3 AP mines from all Scounts and replace it with 3x TNT we have too much of mine spam keep them at the minimum.