Making a quest system is pretty tough, as there are limited ways to go about displaying text.
One way is through having variables that store the quest strings. When a player uses an ability, the quest objectives appears in Game Text. The actual objectives would have to be booleans.
Another way is through floating text but I don't know how you'd end up making that work.
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It's going okay. I'm getting help at TheHelper.net.
I think I may actually finish it!
So far I have I'm using skills to show the quests. I have it working, now I need to fix the hard things, like checking if you have completed the quest, and ending that quest for you but not others.
The hardest part by far is the multiplayer. You can't just turn triggers off or it will screw up for others.