I remember this being brought up on the Pit several years ago. I tend to break my guys up into 5-man fire teams teams since that's all the Tomahawk can carry. If the mission calls for more manpower, 2 fire teams are combined to form a squad.
Team 1:
Team Leader: Stalker - right rank (in '82), has the right training, can double as a medic, and in the comics was an RTO in Vietnam, so he knows how to operate any equipment the team is likely to use
Recoil - RTO
Roadblock - heavy gunner
Ripcord
Big Ben
Team 2:
Team Leader: Wet Suit
Beachhead
Dial Tone - RTO
Repeater - heavy gunner
Falcon - I know he's too high ranked to be used in this role, but the figure's cool and it's my universe
Snipers/Recon:
Low Light
Ambush
Support:
Wild Bill - helicopter pilot
Lift Ticker - same
Airborne - Dragonfly gunner
Breaker - base RTO
Mainframe - base RTO & specialist field tech
Duke - GI Joe 1st sgt.
Hawk - CO
Doc - team doctor
Clutch - driver
Outback - instructor
Specialist Roles:
Airtight
Alpine
Lightfoot
Recondo - jungles
Iceberg - (ant)arctic
Dusty - desert