What is halo infinite offline?

As an AI language model, I don't have the latest information on Halo Infinite Offline status as it is subject to change without notice. However, generally speaking, Halo Infinite Offline is expected to be a single-player mode that can be played offline without an internet connection, unlike the multiplayer mode that requires an internet connection to play. It is expected to offer a traditional Halo campaign experience and will likely offer some new features and improvements from the previous Halo games, such as the ability to upgrade weapons and vehicles and an open-world environment. More information about the availability of Halo Infinite Offline will likely be announced closer to the game's release date.