We have to remember that all users will not be rational while rating the game. Suppose, I am a PS3, PC fanboy who is pissed coz, the game is not in my platform.. I may go and rate it absolute 0 which will drain the score a lot. And not to mention, punks, pranks who are eager to bring down the score low. So, that is not an acceptable standard.
We can't say for sure. They might be actual users who are pissed off at the game as it is not up to the mark. See God of war 3, it has 8.6 user average, Forza has 8.2. This low user score of Halo 3 is amazing indeed.
Either way, correct me if i am wrong... Is there any point in bragging about Halo 3 in MoH discussion thread! Go create another thread, b!tches.
Btw, just completed the game. It was Just okay. Never saw the end coming. May be it was too early. I would give rate it 7 on a scale of 10.