no sorry the only way is a hack
you cant
you cant its impossible
THE halo games that have the flood are halo combat evolved,halo 2,halo 3 and halo wars
a mod
No. You can never play as the flood.
halo 1,2,and 3
You can't create AI in Halo 3.
you can't
Yes Of Course I Played Halo 3
no, all there is not any flood in halo 3 odst firefight
No. The Flood is controlled by an AI (Artificial Intellgence). However, you can play as the Covenant in Skirmish.
Halo 3: ODST and Halo Reach