Public Server cannot play / edit this mission

[J. Grim]

I know a decent amount about arma however I could not fix this. I redownloaded and repaired and nothing I downloaded the mods through steam workshop

Edited May 5, 2018 by JGrim

[Mahto]

I think you haven't loaded the ACE Compat RHS mod pack (USAF, AFRF, GREF). I tried to join the server without the mod and got the same error. I think before the 15th mod pack update you didn't need to have the ACE Compat MODs to join the public server but you need now.

[Maj D. Johansen]

After messages, Grim didn't use the Compat mods as mentioned. He has been provided the link & I assume he will try again whenever he does
However, it should be what made the issue

[J. Grim]

Thanks @1stLt D. Johansen and @pvtmahto