Soviet OOB 11: miscellaneous observations

[Griefbringer]

2.) Ammo loadout inconsistencies for some MG units

a.) Maxim HMG units have different ammo loadouts for main weapons as follows:
- Unit 57 (Maxim HMG[2]) ammo 120 per MG
- Unit 443 (Maxim HMG[3]) ammo 90 per MG
- Unit 610 (Maxim HMG[1)] ammo 90 per MG
I would suggest setting these all to 90.

b.) SG43 MMG units also have different ammo loadouts:
- Unit 58 (SG43 MMG[2]) ammo 120 per MG
- Unit 442 (SG43 MMG [3]) ammo 90 per MG
- Unit 612 (SG43 MMG [1]) ammo 90 per MG
I would suggest setting these all to 90.

c.) DT AAMG units also have different ammo loadouts:
- Unit 192 (DT AAMG[1]) ammo 120 per MG
- Unit 441 (DT AAMG{3]) ammo 90 per MG
I would suggest setting these both to the same value, though I am not sure whether that should be 90 or 120.