All current MOS's:

If they are here, they are available.

Military liaison (IRL Military member to assist with the unit.)

Team medic / Platoon medic

Platoon FO & EOD

Auto riflemen (This includes all Weapons squad)

Team leaders & Fireteam Leaders

Rifleman / Rifleman AT / Grenadier / Rifleman CLS

Mortar team (All roles)

Aviation (Fixed and Rotary)

Marksmen