Kings ' Gambit Kings ' Gambit is a in " " . Detailed walkthrough . Once you have completed the quest Things That Go Boom , speak to Ambassador Crocker , who will assign Kings ' Gambit . Crocker tells you about all the violence in Freeside being caused by the Kings . He gives you two options : solve the problem diplomatically , or kill Pacer , the main person responsible for the violence . Option : Kill Pacer . If you have already talked to the ghoul Rotface , he may have given you tips , two of which include the fact that Pacer has a heart problem and too many drugs will kill him and another is he has a feud with the Van Graff family ( If you have not talked to Rotface , you open this option by stealing Pacer ' s treatment records from Julie Farkas ' filing cabinet in the Old Mormon Fort ) . This will add two optional objectives to the quest , one to kill Pacer by adding to his ( requires 60 Medicine ) and the other is to kill Pacer in a way that implicates the Van Graff family . You have to do this before his stash appears . Method : Frame the Van Graff family ( Jean - Baptiste Cutting ' s note ) . This method works even if you killed everyone in the Silver Rush building earlier . Just follow Pacer there after planting the note in his room and kill him yourself with a plasma or laser weapon to frame Van Graffs . It is important to talk to The King before returning to Ambassador Crocker . Method : Frame the Van Graff family ( working as a guard ) . Doing this won ' t make the Kings hostile and will make you successfully complete both Kings ' Gambit ( since you killed him with an energy weapon while working for the Van Graffs ) and Birds of a Feather ( killing him doesn ' t make you fail this quest ) . However , killing Pacer will break the quest line G . I . Blues , therefore it is recommended finishing that quest first . Method : Frame the Van Graff family ( planting energy weapon ) . Doing this will off Pacer in a way to frame the Van Graffs , so you ' ll still get the rewards from the Ambassador , and the Kings will not suspect you . Note : You must first go back and talk to the ambassador ( after you speak with Rotface ) first before planting the plasma grenade / mine . Otherwise , Pacer will never go to sleep in his room . Method : Spike the jet with Psycho . To complete this method , either speak to Rotface and give him caps until he tells you about Pacer ' s addiction or check the filing cabinet in Julie Farkas ' wing of the Old Mormon Fort . You must also first speak with Ambassador Crocker and tell him your plan , which requires a [ 60 ] Medicine check . It will then add an optional quest to kill Pacer using his jet . Follow these steps : Note : killing Pacer in any way will immediately fail the quest G . I . Blues , so if you want a favor from The King , you need to finish G . I . Blues before you kill him . Method : Just kill Pacer . Using an energy weapon to kill Pacer will allow you to accomplish this quest , however using any conventional weapons will result in failing the quest . If the latter is the case , you still get a reward ( if you apologize ) and are still allowed to move onto the next quest . If you wish to easily regain fame with Freeside , go to the Atomic Wrangler and talk to James Garret regarding spreading positive rumors about you in Freeside . You will have to pay more caps depending on how infamous you are . Option : Solve diplomatically . If you haven ' t used your favor from G . I . Blues yet , you can use it to ask The King to stop the violence and turn the quest in . However , if you have already used it , the King will say no and you will have to return to Ambassador Crocker and tell him that the King will not stop the violence . Crocker will then give you two options ( on top of the option to kill Pacer ) : Talk to at the Hoover Dam or talk to Colonel Hsu at Camp McCarran . Method : Colonel Hsu . After this , return to Crocker . Note : if you attack Pacer or any other Kings , even after they turn hostile and open fire , it may result in a gain of infamy with Freeside and both groups of Kings as well as the King himself turning hostile . The best way to avoid this is to let the NCR troopers and any companions do the shooting , which results in no infamy gained for the player . Pacer and his men are heavily outnumbered by the NCR troopers alone , meaning there is little chance the King will die in the gunfight . Additionally , there was originally going to be an opportunity to pass a Speech check of 75 and talk Pacer down from staging the coup . This was cut from the game and can only be restored through the use of mods on the PC version of the game . Reward . The player will be rewarded with 1300 , 600 and NCR . With a 60 Barter you gain another 200 caps . In addition , the quest For the Republic , Part 2 will begin . The player will get neither of these if you just kill Pacer .