The only thing that feels like cheating (once I get to the point of using it; that AI does not joke around) would be T2 PD, as I've never had an AI (even using AIx) able to sufficiently counter a line of T2 PD without sending T3/EXperimentals/Naval/Tons of Air. That would be the only thing I'd explicitly remove from the build options.
T2 ships would be countered by the time old Vanilla tactic of massed T1 Sub spam supported by T1/T2 Air. That's something I don't see often in games between players and was usually stopped in campaigns by destroyers/T2 torpedoes. But faced with no T2 ships, I think I'd consider it a valid tactic for this mission (again, once I get there).
Reinforcement drops would be cool to bolster your forces upon secondary objective/initial deployment as was done in FA missions. I distinctly remember having ~10 UEF Titans, a Galactic Colossus, and UEF and Aeon SACUs moved to my command at the last FA mission, with the Titans being airlifted in.