What Packs do i need to install to play, every Mode in BO7 (PS5) ?

Wanted to start BO7 on the PS5 but it wouldnt let me.
Do i need to install some of the previous Warzone Packs, the MW3 shared Pack for instance ?
Or do i just need the Data labeled with „BO7“ to play every Mode in Black Ops 7 (including Warzone), and to finally start the game ?