Heavy is going to be the GM taking on the role of referee and the OPFOR (VC and NVA).
I will take the SL position
Captain Britton at RTO

Still need:
ASL, Sniper, Spotter & Scout

The Sniper and Spotter should be close. They will spend a lot of time together.
Same goes with the SL and RTO, but I've been RPing with Britton for years.