How to change enemy options in ODST firefight?

Wanting to add flood and sentinels and -Yoink-.Also is flood enabled in matchmaking

Iirc it’s in the same place it is for reach (i think it’s something like wave properties?), however elites and flood are currently not available as 343 is still putting them together and clearing out the bugs (some enemies were still missing AI if not missing entirely, and soft locking happened often with the flood)