Well I think this will be my favorite bit of Epic Play, as I love team play. My ideas on this is to build interchangeable 100pt squads that can be used. I also will probably have one 200pt build for space superiority and the other 200pts with heavy support/bomber craft and cheap fillers. For example, I am thinking of this:
Squad 1 (200pts)
Soontir Fel + PtL + HU + TC
Rexler Brath + Predator +IC
Whisper + VI + Merc Copilot + FCS + ACD
Turr Phennir + PtL + HU
2x RGI + PtL
Squad 2 (200pts)
Howlrunner
4x AP
Jendon + ST 321 + AdvS + EU
Jonus + ST + Homing
Scimitar + CM + FT + Seismic
Scimitar + CM + IPM + Seismic
Scimitar + FT + Seismic
Please feel free to post your ideas!