Console Monster writes: "Website Game-Tuts are claiming to have their hands on the Halo 3: ODST Achievements. The website captured footage of the achievements on an Xbox 360 using a capture card. It is not yet known whether the achievements are genuine though it looks likely.
Note: The achievement list may contain spoilers.
The game contains 47 achievements worth 1000 GamerScore:
Listener – 5 GamerScore
Found the first Audio Log.
Kikowani Station – 30 GamerScore
Completed Kikowani Station on Normal, Heroic or Legendary..."