-NO GODMODDING! <- Possibly the most important guideline. Don't make your character "all-powerful" because honestly, it's not fun and ruins the RP. Also, your not going to magically move up into the ranks and be able to be amazing right off the bat. The longer you RP, the more privileges you'll have.
(Example: It took me 7 months to go from a "Sith Apprentice" to "Sith Knight" on another RP site that this RP is based on. Another Example: It took a few months and a lot of hard work for C'tan to become a sith knight as well.)
-Keep trolling/flaming to a minimum
-Try and keep your posts at least longer then one paragraph. Sometimes it just doesn't work out and I understand that but if you can help it, try and put forth the effort to make a longer-ish post. It makes the RP's more fun and helps them flow.
If you have any questions, feel free to ask.