This would be my suggestion:
Officer: HK416 Aimpoint
Officer Scoped: HK416 Aimpoint/magnifier
Rifleman: HK416 Aimpoint
Rifleman Scoped: HK416 Aimpoint/magnifier
Rifleman Specialist: HK416 EOTech or AG3F2 Aimpoint?
Combat Medic: HK416 Aimpoint
Automatic Rifleman: MG3 (or Minimi? Check with MAs)
Combat Engineer: HK416 Aimpoint
HAT: AG3F1
LAT: HK416 Aimpoint
AA Rifleman: AG3F1
Marksman: AG3F2 ACOG (solid stock & bipod)
Sniper: HK417
Grenadier: HK416 Aimpoint/magnifier + AG416 (requires AG416 model) or AG3F2 Aimpoint/magnifier + HK79
Crewman: MP7
Pilot: Glock 17 or unarmed?
As you can see, there's a lot of Aimpoints going around and less zoom than the other factions' scoped weapons. This means that the soldiers will have to cooperate more with their CV90s, which have the zoom and firepower for longer-range engagements, but are vulnerable in close quarters.
Also a suggestion for the soldier models.
From what I've seen, the TMBN soldiers are issued the Bear vest. Now, I'm not sure if that's what's being used in Afghanistan, and in what colour. Need input from johnandreas on this, but the soldier models should use the kit model that looks the most like the Bear (or whatever's being used) vest.
Interesting link (in Norwegian, but shows some of the kit) about the OMLT guys:
http://www.aftenposten.no/nyheter/uriks ... ce#chNum=2