I'm not sure but an Elite told me after 24 hours I would've got the Trusted rank and I've been on the site and server for days now and yet to receive the rank, not complaining just interested in any helpful information regarding to this topic, thanks in advanced!
Trusted rank is only available on the survival server, you will automatically get it after you've played on survival for a total of 24 hours. You can check how long you've played using /ar check