Addon weapon "cannot play edit this mission dependant on downloadable content"

[Alma123]

Hi!

 

I have an Epoch server without any problems. I try to add a new weapon (Ussr_M200).

I copied the .PBO and the keys my @MyMod/Addons.

If I play and pick up the M200 I got this massage: "cannot play edit this mission dependant on downloadable content" I click the OK, and no problem.

 

If I editing my Mission.SQM and add the AddOns Ussr_M200, when I try to join my server "Waiting for host". My server RPT is:
"cannot play edit this mission dependant on downloadable content ussr_M200".

 

How I can fix this?

[Alma123]

I add it, and my server verifySignatures = 0;

The problem still consist :(