Kill Darion

"Kill Darion" is a side quest in Fallout 2, that requires you to kill a man named Darion who resides in a vault. This quest seems to be the most straightforward and easily done quests so far.

quick walkthrough
1. Get the quest from Zeke in Vault 15.

2. Find out where Darion is located.

3. Travel to the vault and find him.

4. Finish him off in any manner you seem fit.

5. Go back to Zeke at Vault 15 for a whopping 6000xp.

detailed walkthrough
Simply kill Darion (near where the big computer is inside every vault, 3rd to your right) and you'll be awarded a generous amount of experience.