MCU GotG vs. Master Chief from Halo. Book feats etc allowed for Chief.
Fight in a forest, starting 300 meters apart.
Guardians roster:
Star Lord
Rocket
Teenage Groot
Gamora
Nebula
Gamora and Nebula have swords and energy pistols from their movies.
Chief has:
Cortana
Assault Rifle
Hydra rocket launcher
Plasma Pistol
Energy Sword
2x frags and 2x plasma grenades.