The short answer is no although it may be provided in a future update. You'd have to ask 343i about that.
The game has all of the halo reach gametypes on it, just with new maps. Infection is on.
No.
No
Halo: Combat Evolved 10th Anniversary Edition is already out (year 2011). The original Halo: Combat Evolved was released in 2001.
8
yes
Buy it at best buy.
Yes, there is a halo custom edition.
Yes, halo 4 and halo anniversary (which is a remake of halo combat evolved)
I really do not know
It is not out yet, but will be out on November 15th this year.
1.