Vert:

The Engineer contained information as to why the covenant was digging, it doesn't explain this in halo 3 of course but the engineer obviously helped with its "LIMITED" knowledge of the covenant battle plan, probably information on what they were doing etc, of course they had no idea where they would pop up and that lead them to the Ark where they destroyed it, then after that they popped up in the dead space from what i gather the Spirit of Fire intercepted the Mastercheif and cortana.

 For those of your interested i have noticed some things that others may have missed.

   There are a set of eyes in the sky on the Halo 3 disk

   You can see Victoria and Buck on the Halo Reach wallpaper that has been released, questionably the other characters around them are     other     memebers of the known ODST squad but question can be razed as to a different ODST team becaue the ODST that you see in Halo 3 ODST include "replacements" as Buck states them. Rookie is defiantly new from what i gather.

 

Does that mean we play as ODST in Halo Reach? Halo ODST was fun and all but I want to get back to spartans now =/