Following multiple testing periods, Halo: Reach is officially launching on PC and Xbox One on December 3, and it’s going to have a lot of multiplayer maps to choose from. Microsoft confirmed in a blog post that on launch day, Halo: Reach will have a pool of 6.2 million maps available to download and play.
The figure is so massive because it includes “legacy” maps made by the community for the original versions of Halo 3, Halo: Reach, and Halo 4 that have been brought over.
Source: N4G PC Halo: Reach For PC/Xbox One Will Have 6.2 Million Maps On Launch Day