these are the ranks from lowest to highest and with a brief explanation:
GUEST: newly joined player, must build for a minimum of 2-4 hours and build before promotion to builder.
BUILDER: a player who has completed the guest requirements, gains a couple commands, use /help to find them.
ADV.BUILDER: a rank known as a skill rank, must build good projects and be trusted to be promoted to this rank, few extra commands gained aswell use /help to figure them out.
VIP: this rank is only obtainable by a minimum donation of 10$, with this rank comes creative and spawning abilities, and a few others, use /help once again.
SPECIALISTE: very high skill rank, be a regular player, and be trusted to be promoted, build very good things and enforce our rules.
MOD: this is a rank of power, show us you can inforce our rules, be trusted, and have a clean ban record, respect higher ranks at all times. this rank can only be obtained if the owner and co-owners and admins all agree.
ADMIN: this rank is a more respected version of mod, this rank can be obtained by being a good mod, also by proving to us you will not favour your friends while moderating incidents.
CO-OWNER: obtained by being a a regular playing admin and being good at keeping the players from griefing and fighting, gain respect amongst the other co-owners and owner to be promoted to this rank.
have fun on the server and i hope this helped!