What changes should Infection havein Halo Infinite

I know that Trypal has some Youtube videos on this i just want more opinions on this topic.

https://www.youtube.com/watch?v=eSwnWDV2OB4

Bring back the flood combat forms as the infected spartans to play as. Not sure why they didn’t appear in Halo 5 when they were in Halo 4 and Halo 2 Anniversary.