Hello.

The sides small arms weaponary pretty much balanced,but I think game needs a bit elder types of weapons,that was in ArmA2.

-Small unguided AT launcher(like M72/RPG22) the reason is - Guided missiles are to expencive IRL,thats why in squad level uses this launchers.The launcher effective at around 200 meters as anti infantry in structures and may stop(Not fully destroy in one shoot) light vehicle.Only one shoot,then you need new launcher.I saw XM25 in weapon list,but you can't use other small arms,if you carry it.

-Medium Machine Gun.General-purpose machine gun.Currently IRL they uses 7.62mm ammunition mostly(exept china,but they do't like it much).Need change only one thing - 7.62 round became old for these times.Better to use .338 Norma Magnum in Medium Machine Guns and DMRs.As well as use it as mounted on vehicles and tripods.I think will be good LWMMG for BLUFOR and MG3(Heavy Modification) or PKM/PKP(Heavy modification too) for OPFOR.

Well that most nessesary weapons,that needs in squad/team level,rest of them are exist.Thats not important,but in ArmA and ArmA2 was diffirence,between Machingunner and Automatic Rifleman.And in generic infantry squads always have an Rifleman-AT with light rocket.