Missing Campaigns

I downloaded MCC plus the Halo: Reach add-on onto my PC. But the only campaign I can play is Reach. I looked for other game add-ons but no luck. Is there something I’m not aware about what I need to fix this? THX

Reach is currently the only MCC title available on PC. The other titles (CE:A, 2A, 3, ODST, 4) will be developed, tested, and released throughout 2020.

> 2533274841265539;2:
> Reach is currently the only MCC title available on PC. The other titles (CE:A, 2A, 3, ODST, 4) will be developed, tested, and released throughout 2020.

Thanks