Stop Bishop's raider band from attacking Vault City

Stop Bishop's raider band from attacking Vault City is a quest in Fallout 2.

Quick walkthrough
Go to the hidden mercenaries' cave, kill all the mercenaries, get the captain's logbook and show it to Lynette.

Detailed walkthrough
After learning that the raiders are attacking Vault City, Chosen One is being tasked to find out where they are and kill them. One can directly go to them (near the direction from Vault City to Broken Hills). After that, they must go into the cave. One must be beware of traps, like explosives or holes (they lead to bottom level where the radscorpions are). The Chosen One must go to eastern parts. There are more traps, but also 2 fenced doors which are locked (a very high lockpick skill is required to open). Then Chosen One must kill all mercenaries which can get quite tough, given the epquipment they are given. After that, one must collect the dogtags from Angel-Eyes, Tuco and Blondie to open the safe. Inside is some treasure, along with a logbook which must be shown to Joanne Lynette in Vault City.