343 Industries
As explained by the developers
With this distraction in mind, 343 Industries hopes to start testing the PC version of Halo: Combat Evolved for "external partners" by the end of January, and for program participants
As part of the upcoming tests, the developers are going to test the work of the story and cooperative campaigns, multiplayer (reliability of servers and connections, cross-platform functions), customization and progress.
As such, there is no record for testing, but 343 Industries advises updating your Halo Insider profile and uploading the latest version of DxDiag (system information) to it.
Halo: Combat Evolved is part of the Halo: The Master Chief Collection. Shooters will be released in chronological order, starting with the prequel (Reach) and ending with the fourth part.
Updated
Source: 3dnews.ru