Smarter ai like marines make them look like marines bring back h3 warthog with the brush guards of h4 make it sound like a diesel not a derby car bigger campaign battles make spartan iv s feel like Spartans like reach did halo 3 ranking system no multiplayer load outs bring back odsts and long swords maybe a fleet battle campaign that would be cool let the tank be like halo one tank but with the gunner unsc air vehicle like the falcon or Valkyrie I think bring back the spartan 2s that didn't die I think their we're two and what happend to jun in reach