Can you add Factions+, SignRanks & SignRanks+
Factions+: http://dev.bukkit.org/bukkit-plugins/factionsplus/
SignRanks+: http://dev.bukkit.org/bukkit-plugins/signranks/
SignRanks: http://dev.bukkit.org/bukkit-plugins/signrank/
BTW I recommend the plugin limit to increase by 20
