This is a neat part....here, the above mentioned rules almost all apply, with some aspects. In the Dueling Institute of Eos, you fight one (or more) opponents, writing one after another a combat post in which you sta=te what your character is doing. A specific set of rules applies, and following those rules is vital to win the match. Also important are the pre-set timeframes. Needing too long for your post can lead you to lose as much as not following the rules cam. Just like above, godmoding is a total no-go, except for the final deathpost. During the combat posts, you don't write ANYTHING that tells how your opponent reacts/acts. Doing so is a sure way to lose the duel. The other parts will be taken care of in the following information.

• Know What You Know: This is also a general thing for all story-writing, but is especially important for DIE, where you can see the character sheets of your opponents. Your character doesn't know what your opponent does, and unless you lived together with them, you do not know their historic background or skills. You can only guess the things you see or notice during the action. This means, that you need to base your decisions/actions on what your character knows and on what your character has noticed, not on what you have read on the charsheet of someone else.
  
• Skills/Attributes: This is somewhat limiting, but your character has a certain set of skills and attributes...try to follow them. Not having a certain skill doesn't mean that you can't perform it (if you don't have the skill blaster pistols, it doesn't mean you are too dumb to take the blaster, point it somewhere and shoot...but you won't be able to repair it, to aim it really well and be able to shoot in all kinds of situations). But someone without the skill starfighter piloting (or freighter piloting) will have no idea of how to bring a fighter off the ground, much less handle it in a space combat. Another example is someone with strength 1 can't go and lift some heavy crate. Keep realistic with your character sheet... nobody is perfect and no one is skilled in everything.
  
• Plan the Fight: Always keep in mind that there will be a deathpost in the end; unless you are completely without an idea, get a basic strategy together on how you want to win the fight. Do you want to lure your opponent into some trap, simply take him/her down with your combat skills, play mindgames on them, etc.? Find a plan, try to go with it...and if your opponent acts in a way you never expected, be ready to follow a different path after all.
  
• Realism: Ok...this has been mentioned above before but bears repeating: be realistic! When two skilled knife combatants, for example, fight in close distance, neither will usually go out unharmed. Or, if an expert Sith fighter pilot is dogfighting a poor uneducated Krath Novice...well, it wouldn't make much sense for the Krath to be flying loops around the Sith, right?
  
• Give an Insight: A good writer will give certain insights to why his or her character is acting as he/she is, or why he/she is making the decisions made. What is your character thinking, what is he/she reminded off, what is his/her point of view, how is he/she feeling? Is something itching, blood and sweat burning in their eyes or making their grip slippy... consider everything that might increase the atmosphere and allows other a deeper picture into what is going on.