MrJackMC 0 Posted August 1, 2015 So whenever i try to join arma 3 altis life it says Files "addons/missions_f_epa.pbo" "addons/missions_f_epb_data.pbo" are not signed by a key accepted by this server. To play on this server, remove listed files or install additional accepted keys. Someone please tell me what this means Share this post Link to post Share on other sites
Jackal326 1179 Posted August 1, 2015 Check your addons folder for the file called 'missions_f.pbo.a3.bisign' If its not there, try verifying your game cache through Steam. Share this post Link to post Share on other sites