Finished the game the other night. Great fun, not as good as HALO 3 obviously, but worth my time and money. Loved the hub world.
If I have one gripe about the entire thing - and forgive me from not checking through this humungous thread for an answer to prove me wrong; its that we finally had another opportunity to fight against Elites given the timeline, yet they weren't included in the enemy lineup. Don't get me wrong, I fear the hammer brute as an ODST - he makes me run my ass off, but nothing has ever instilled as much fear in me from these games as much as the invisible/gold elite with a sword. Are we to believe that as soon as Reach's ship jumped after the Elites were still campaigning against the humans in New Mombasa that they were all suddenly wiped out by the Brutes? The Brutes' campaign and the civil war hadn't started THAT quickly. We could have had a few opening levels against Elites.