What issue are you running exactly? There are quite a few troubleshooting options to try for that and some of it is just confusion about how to activate the individual map packs or the Black Ops Pass itself. However, just let me know the details and I'll see what we can try.
Hey there, sorry to hear that but is it just that one individual map? Also, are you not seeing it in the playlist menus where it lists out what maps are available for that playlist? Lastly, can you access the map (or maps) in custom matches?