You will be forced to bring exactly two dwellers for this quest. Every group of enemies here will be pairs of radscorpions, except for the boss, an irradiated radscorpion with two additional radscorpions. Once they are all defeated, the quest will be successfully completed.
Travel for 4 hours
Clear several rooms from various vermin
Kill the glowing radscorpion.
(optional) Continue to further rooms to kill some more creatures and find some more loot