343 Industries has kicked off Halo 4 Insider testing, and this one is available across PC and Xbox One, as the studio is also testing new features such as cross-play and input-based matchmaking.
Input-based matchmaking RSS
343 Industries is planning to host Halo 4 PC testing sessions next month as part of the Halo: The Master Chief Collection, and it will also contain cross-play and input-based matchmaking features.