vault 15

So I’m replaying Fallout 2, and I ended up taking the Rescue Chrissy quest outside Vault 15; everything went wrong. Immediately. So, first off I figured I’d go in guns blazing, take her back to her mother by killing the raiders. Karla died in the shack... Phil, Chrissy’s room key holder, died...

I've started replaying fallout 2 and i am at the part where you have to go to vault 15 for the ncr and kill darion to free the homeless there. only problem is that after i killed my way to the third floor and killed his gaurds darion vanished without talking to me. I've tried searching for him...