Mission
Who: Dark Jedi (apprentice level)
Where: Korriban
How Many: one
Event: (this is an easy quest nothing astounding) The mission is to manage entrance into a strange cave within a few miles of the academy, and within the cave, which is totally pitched black, they have to use their weak force sense to lead them through the under ground maze. they are to either find a light saber crystal, The lightsaber of a previous student that "never came out". or even a simple artifact like an old massassi lanvarok ax. the actual object would be to the desire of the master/instructor commanding the mission.
Conclusion: the apprentice could wander into one o)f the many friendly and loving creatures that survive the planet. obviously a student could not survive an all out battle with a Terentatek, Hssiss or a full grown Tuk'ata. but maybe a Shyracks, or a couple of kynraths. maybe even run into an anchient sith spirit (not necessarily a lord or anything) and have to battle it.
Mission
Who: Dark Jedi
Where: Korriban
How Many: one
Event: the mission is simple, find a tarantatek, kill it and bring back proof of the kill.
Conclusion: <.< >.> yeah....
Mission
Who: Dark Jedi
Where: Coruscant
How Many: a student and possibly a master. (also a consenting jedi from the jedi academy.)
Event: Find vantage over a jedi, learn what his plans are what his missions are, and eradicate him/her. the mission will take months.
Conclusion: well, the student at this point will be very powerful, nearly rivaling their master. (if apprentice, then nearly ready to be a knight, if a knight then nearly ready to be a master, so on and so fourth.) in the process of following and watching this jedi they may actually start a relationship with them, possibly gain attachments that would convince them otherwise than to kill them, or not. if the case is to not kill the target, then they have to kill their infuriated master. perhaps able to do it if helped by their jedi companion.
(on second thought, it dosent just have to be a jedi, maybe a republic higher up or even an imperial in which case it would be held bastion, and they may not have to be another guild members character)