Halo game services on Xbox 360 will be going offline in December 2021. The games effected include Halo: Reach, Halo 4, Halo 3, Halo 3: ODST, Halo: Combat Evolved Anniversary, Halo: Spartan Assault and Halo Wars and will all have their online services shut down by approximately December 2021.

Can you play Halo Reach single player?

The master chief collection does indeed have a single player campaign. Only halo: reach is available at the moment for PC but the other games will release during 2020 which will also have single player campaigns. You can also play firefight solo besides the campaign .

Is ODST worth?

Totally worth it to play on there too especially considering how cheap you can get a copy for nowadays. Side note, every Halo game except 1 and 2 are backwards compatible with all DLC free.