Custom Game Flood

Can we have the option to choose to play as Flood in custom games besides Flood mode? Also, should the Claw be able to be used by regular Spartans, like they carry a dismembered claw?

If you mean custom as in slayer, ctf etc. most likely they will not, it would defeat the purpose of having the game mode. Also no to the claw though you can probably edit the flood game mode and make it into variations that might be much different than the original game mode.