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.

On Xbox One, Halo: Reach is joining The Master Chief Collection, and players will be able to find all of these maps through the file-finder. For PC, games within The Master Chief Collection are launching one-by-one, so these maps will live inside Halo: Reach alone.

It's good news that all these maps are coming to Halo: Reach on PC at launch because, as announced earlier, the map-making mode, Forge, won't launch on PC until 2020. The Theatre mode, which allows players to view recent multiplayer matches or campaign missions, will also be unavailable until 2020.

Forge and Theater will, however, be available on Xbox One at launch on December 13.

Also in the blog post, Microsoft confirmed a number of important particulars about Halo: Reach on PC based on feedback from the earlier testing periods. Here is quick rundown:

Overall mouse input quality has been "greatly improved" over the betas.

Variable frame rate (VFR) will be available at launch.

The audio encoding had to be changed for the PC release, and this means it will sound different compared to the Xbox 360 original. The team is working on addressing this.

Microsoft is planning to upgrade the servers in its data centers for launch to improve the matchmaking experience.

There is push-to-talk communication by pressing and holding the V key.

Go to the Microsoft blog post to see a full rundown of important things to know about the upcoming release of Halo: Reach on PC and Xbox One.

Halo: Reach costs $10 on Steam, while those who already own Halo: The Master Chief Collection on Xbox One can play the multiplayer, custom games, Forge, and Theatre for free. The campaign and Firefight modes will be available to buy for $10 USD. Xbox Game Pass subscribers, meanwhile, get everything for free.