Currently, all paratrooper squads except the Soviet Union are equipped with their unique weapons at full squad size.
But I suggest that future paratrooper squads could have a mix of different weapons, so that we can give the paratrooper squads more historically accurate signature weapons without breaking the balance.
In the “squad research” you choose different weapon sets just like choosing expert in TT squad, and the soldier in squad will change their weapon correspondingly (so you still can’t replace them by your own weapon).
Their weapon crate will needs to be rework too.
British

weapon pool:
Sten SMGs
Bren LMGs
2 inch mortar Mk VII*/Mk VIII “paratrooper”
lee rifles (GL) (Scoped)
etc
USA

weapon pool:
Thompson SMGs
Reising SMGs
Johnson LMG
BAR LMGs
Garand rifles (disassembled/fold stock) (GL) (scoped)
M1/M2 carbines (fold stock) (GL)
Springfiled M1903 rifles (GL) (scoped)
Grease gun
etc
Italy
weapon pool:
Beretta M38 SMGs
Breda 30
Moschetto Mod. 91/38 paratrooper rifle
etc
Japan
weapon pool:
Type100SMG paratrooper
Type 100/1/2 paratrooper rifle (seem like no scope slot unfortunately)
Type 99 LMG “paratrooper”
Type98 grenade launcher (mortar)
etc
German
weapon pool:
MP 38/40
Kar98K (scope) (GL)
FG-42 I/II (scope)
etc
USSR
weapon pool:
PPD PPSH
SVT-40 (scoped)
RD-44 (if count as RPD)
PS: Some of the paratroopers did jump with heavy weapon like bazooka, but it’s a little overpowered in enlisted, maybe single use panzerfaust in acceptable
PS2: Some of the weapon in list have portable design, but that create no benefit in game, I suggest
give them extra buff like extra small backpack slot (but they need a animation to ready their weapon, like assemble gun or unfold stock). Or we nerf all other weapon so they don’t have mine slot.