Forum:Moon easter egg, Shangri-la and CotD

So, you need ONE person in the team having the secrets from Shangri-la AND Call of the Dead? Or only one of them? If only one, is the secret from Call of the Dead in solo enough?

I mean for doing the secret from moon giving the 8 perks to everybody. I must know which secrets I have to do if I wanna play duo in moon with my friend (he doesnt own either Shangri-la or CotD), so which secrets must I do?