I am getting an error when I try to open the mission file. It reads:

"You cannot play/edit this mission; it is dependent on downloadable content that has been deleted:rhsusf_c_troops, rhs_cti_insurgents, rhs_c_troops"

I can't see any dependent mods in the description, and I don't want to go downloading every mod that is labeled RHS on the workshop. Can anyone tell me what I need to download to run this?

P.S. I'm trying to get this unofficial version because I want to be able to use artillery, which Bohemia decided to block in the official version. Thanks in advance.