Halo is all about saving the world by stopping an alien force called the Covenant from activating the Halo rings. That's pretty much the story.
The names of all the Halo games are (in order): Halo: Combat Evolved, Halo 2, Halo 3, Halo Wars, Halo 3 ODST, Halo Reach, Halo: Combat Evolved Anniversary, and Halo 4. In chronological order: Halo: Wars Halo: Reach Halo: Combat Evolved/Anniversary Halo 2 Halo 3: ODST Halo 3 Halo 4
Halo : Fall of Reach Halo : The Flood Halo : First Strike Halo : Harvest Halo : Ghosts of Onyx
Halo 3, Halo wars, Halo 3:ODST and Halo:Reach
the recon helmet for halo 3 is unlocked by completing all of the vidmaster challenges in halo 3 and halo odst
you get all the vidmaster achievements on halo 3 and halo 3 odst
No all the halo games are only for xbox 360
HALO all the way.
no cheats in any halo game
Halo all the way!
halo wars is rated teen
Halo Reach, Halo: Combat Evolved, Halo 2, Halo 3: ODST, and Halo 3 were made by Bungie; Halo: Wars was created by Ensemble Studios; Halo: Combat Evolved Anniversary and Halo 4 were created by 343 Interactive
All in halo 3 and all in Halo 3 ODST.