

Your dwellers will recover health slowly and be fine for the next time they attack. They'll make it down a level or two and then die. They'll cripple most of your characters but since they only spend a few seconds in each room no one is really in danger of dying. As long as you also have elevators all the way to the right of your shelter (in addition to the starting elevator continuing down) then the deathclaws never double back on a given room. The deal a lot of damage, but are fairly benign. They're fast, they inflict massive damage + radiation damage, they tunnel unpredictably to other rooms and they sap your power, which is an issue when they constantly tunnel into empty rooms. They are perhaps the most difficult enemy in the game. At 35 population you have mole rat attacks, which aren't too bad, but at 50 you can start to have Radscorpions. A vault of low endurance and unarmed dwellers is just asking to have half of them die from an attack you're not prepared for. Defeat it to finish the final objective and gain a lunchbox and a flamer.The other thing to keep in mind is that you don't want to grow your population too quickly. On the bottom floor, the glowing radscorpion awaits, and it has one other radscorpion to assist it. The left room has a pair of radscorpions. Defeat them to complete the optional objective. By heading down the elevator, the next floor has the raider boss and two additional raiders. By heading up all the way, one will come to a room with a glowing radroach and two other roaches. The next floor has a pair of raiders on the right, and an elevator that leads up to a previously inaccessible part of the vault. Upon heading down a floor, the left room has a rare dweller that can be recruited to the vault and completes the first objective, and the right room has a pair of mole rats.

The next floor down has a pair of radscorpions. The elevator on the left allows access to the rest of the floors of the vault. Upon heading down the elevator, there are three raiders in the next room. The top floor of the vault has a single radscorpion.
