|The following is based on Fallout Shelter or Fallout Shelter Online and some details might contradict canon.|
This quest takes place in a vault with four floors. The first floor has a raider leader accompanied by four raiders in the room to the right. The leader drops a legendary weapon recipe on his corpse, and the room may contain random legendary junk. The second floor has note #1 in the right room, a group of five raiders in the middle room, and four feral ghouls in the left room. The third floor has note #2 in the left room, and four raiders in the room to the right.
To the right of the four raiders is note #3, as well as the Mr. Handy box. There is also a random rare weapon in the room and 1200 caps. Anything beyond here is optional. The rightmost room on the floor has three more raiders. The bottom floor of the rightmost room has a group of three raiders. Two rooms to the left is a room with a group of five raiders, and the leftmost room has one final trio of raiders.
Received our Mr. Handy today. We're going to need to get this thing up and running quick if we're going to get the repairs done in time.
Repairs are taking longer than expected. I'm going to get everyone into the lower levels. Hopefully we'll all be safe down there.
The door. It won't seal. I'm turning on the distress beacon. Maybe someone will help us. Otherwise... it's only a matter of time before the radiation gets us all.