The XBox One version of PlayerUnknown's Battlegrounds has officially launched with a surprisingly small file size of just over 5Gb. The game is part of the Microsoft Game Preview, essentially a beta work-in-progress. This provides the development team and the community an opportunity to work together to make improvements to the game and to chase down / squash bugs over time.
"In addition to support for third-person solo, duo and squad gameplay on the current Erangel map, PUBG on Xbox One will also feature vaulting at its launch into the Xbox Game Preview program. On Xbox One X, the game will be enhanced to include HDR support and 4K resolution, with more details to come." said Chang Han Kim, CEO of PUBG Corp. "There’s also some very cool Xbox-exclusive things that I wanted to call out. The team at PUBG Corp. has been working closely with team Xbox, not just in bringing the game from PC to console; we also collaborated on creating some Xbox-exclusive, limited-edition cosmetic packs."
You can learn more on the PlayerUnknown's Battlegrounds Microsoft site.