- KevChaos86
- |
- Noble Member
This map will help you complete them. I'd advise looking for them on Normal, since I'm unsure if they'll register on easy.
http://achievementhunter.com/games/halo3odst/guide/
If you need further help, add me and I'll assist when I can. - Kev
[Edited on 08.14.2010 4:02 PM PDT]