THe mod has several unneeded data in its addon directory: fpa.pbo.bak and a fpa directory with all the files of fpa.pbo, which makes the mod 3 times bigger then necessary.

I have done the signature, and it did show as "signed", but I'll look into it. Good catch with the .bak, I did not realize it. It's due to PBO Manager creating a copy.

I'll fix these in the next update when I have time and motivation. Thanks for reporting.

Yes the mod is signed, however for whatever reason its not signed correctly. Don't know what exactly the issue is, but under certain circumstances it seems to happen, i have seen the issue with other mods too. Maybe resigning it will fix it.

If you activate the "Check signature" parameter in Arma3 Launcher as suggested in the original post, Arma will you notify too that the signature is not correct.

Maybe it also depends on the tools you you for signing. Here is a thread in the BIS forums about this issue. https://forums.bohemia.net/forums/topic/233762-solved-dsutils-not-signing-a-pbo-correctly/?tab=comments#comment-3432278

Hi Marccanen! Great mod, but this is still non-usable on dedicated servers. Trying to create FDF-mod for Antistasi... ;)

@Marccanen, do you mind if I re-upload this with the fix in place, so it can be used on servers. I'll obviously credit back to here and remove it when yours is in a better place?