Chuck Norris.
The Arbiter does not make an appearance in Halo 3: ODST.
Yes, eventually
in HALO 3 you are a Spartan and in HALO 3 ODST you are a Orbital Drop Strike Trooper (ODST)
Halo 3 ODST Rookie was the first one to survive a failed jump.
Rookie Mickey Dutch Romeo Buck Dare
I would say Halo 3 ODST
Halo 3 ODST is not for PC but Halo 1 and maybe Halo 2-3 are
Because although he's relatively experienced, he's new to the squad.
You are an O.D.S.T. rookie that gets separated from your team after you fell from a pod.
Halo 3: ODST is the newest of the two, but not the newest Halo game.
In Halo 3 you are a Spartan called Master Chief which is like a cyborg In ODST you are an Orbital Drop Shock Trooper dropped in a tube from space and you are a normal marine and your troop was scattered and you need to regroup-you do not see master chief at all