Even if you have it on XBOX it's is still worth buying for one reason....
The bad:For some reason the banchis and ghost don't have the NOS'if you already finished the game on XBOX a million times the online play may only apeal to you'can't save gamming friends'can't put servers in a "Favourates section"
I downloaded this game back in 2003 diden't realy like it dumbed it then for chirstmas that same year i got a XBOX pack and halo came with it and then i realisd just how fun it was i played with all my bros and cousons for hours and i diden't realy think about online until halo 2 came out but halo for PC was no wear to be found but last April i found it for 30 bucks at EB games and without hesatation i got it before i even looked into Single player i wen't stragh to options and put every thign on high and what did u know when i was playing online it barly dropped from 60 FPS in a pretty crowded area! the cars are very fun and easy to use in online play but that tanks just make it TO easy and theres a few extra levels and depending on what server u are on it may get fun or booring so if you wan't to play halo online but can't afford LIVE or just wanna relive the halo single players get this game you will enjoy it