Like other AAA games, Microsoft’s Halo 5: Guardians will require players to download a day one update. Now, developer 343 Industries has revealed the size of the update: 9 GB.

Executive producer Josh Holmes revealed the figure on Twitter. The update pertains to Halo 5’s multiplayer mode, as it introduces unspecified “multiplayer map content.” This is not uncommon for multiplayer games, as developers often spend as much time as possible fine-tuning before launch.

People who buy the digital version of Halo 5 from the Xbox Store and pre-load their copy can install the day one update prior to launch if they use the Xbox One’s Instant On mode. People who purchase the disc-based version, meanwhile, will need to download and install the 9 GB update.

Leaked Halo 5 box art revealed that the game would require “up to” 60 GB of hard drive space. As it turns out, it’s a little less, coming in at about 55 GB (46 GB for the game and 9 GB for the update), according to Game Informer.

The Halo 5 release date is set for October 27 exclusively for Xbox One.

In other recent news about the game, 343 has announced its launch day multiplayer playlists and revealed all the achievements. In addition Nathan Fillion likes the way he looks in it and 343 has announced what actions will get you banned in Halo 5 multiplayer. You can also check out this awesome Master Chief vs. Spartan Locke pumpkin carving.