ODST is a Orbital Drop Shock Trooper
If you mean the Multiplayer disk that came with ODST then yes, but if you mean the ODST campaign disk then no.
in HALO 3 you are a Spartan and in HALO 3 ODST you are a Orbital Drop Strike Trooper (ODST)
I would say Halo 3 ODST
although you see some odst, you still have to be a spar ten or elite If you want to be an ODST buy "HALO 3 ODST"
Yes you can get the mongoose on Halo ODST
Halo 3 ODST will be released on September 22
Halo 3 ODST is not for PC but Halo 1 and maybe Halo 2-3 are
halo 3 odst, unlike halo 3, has no matchmaking, sorry
odst dos not include forge
No ODST comes as its own disc and if you own odst you get a beta of Halo Reach in 2010
If by Trophies you mean the PlayStation console trophies, there are none. Halo 3: ODST is only on the Xbox 360.
no you can't