Excalibur (Warframe) + Mobius 1 (Ace Combat) + EVA unit 01 (Evangelion), vs White Glint (Armored Core: For Answer) + Nineball (Armored Core) + Nightfall Raven (Armored Core 6), vs the RG RX-93 V Gundam ( Mobile Suit Gundam: Char's Counterattack).
Teams, 3 way split
Team 1, Team Ragtag: Excalibur Warframe, Mobius 1, EVA 1 piloted by Shinji. Assume for the purposes of the fight that Excalibur can, if need be, call in a Necramech, K-Drive, Atomicycle, and Archwing should the situation call for it, but he can't spend the whole time in one mode. Assume that Mobius 1 has been modified similar to a Veritech Fighter for spaceflight and space combat.
Team 2, team AC: White Glint, Nineball, and Nightfall Raven.
Team 3, solo: RG RX-93 V Gundam. Nuff said.
R1: its a blind 3 way fight, no teaming up between the 3 teams, all teamwork must be inside their assigned teams. No prior knowledge, no prep time.
Bonus Round 1: Same as above, but teaming up is now allowed
R2: 1 hour prep time with dossiers of each of the enemy combatants.
R3: Each side is supported by ground infantry and artillery, and light air units such as helicopters.
R4: Same as R1, but Mobius 1 is replaced with pilot Rick Hunter piloting Skull One Veritech Shadowfighter