Its been so long since I’ve played it I can’t recall how many Chieftain boss fights their were in the Campaign. I know Halo 3 had like 12, did ODST have more or less?
If I recall, there was at least one on each of these levels:
ONI Alpha Site
May be more but I can’t remember.
I don’t know, but I’ve heard “RAAAAHHHH!” wort, wort, wort “MMURAAAAAAA!!!” followed by a smash of the Gravity Hammer BOOM many times through the campaign.