I can only imagine there are a million possible topics to integrate into the large scale multiplayer battles however, integrating an option where you could become an ODST would be an awesome way to spice up the gameplay.
What would that bring to the gameplay? All I can think of is dropping in pods.
Idk it could be designed like an air strike where you’d select a spot on the map and a group of you get pod dropped in that spot. Or like Fjell in battlefield five where you drop in instead of classic spawns (different game mode would be needed for this though).