I was playing the quest show no mercy from the Brotherhood of steel, and I hadone almost killed all of the Mutants outside, butt when I was shooting at the last one suddenly the de appeared two Brotherhood of steel members and they started shooting me,. I killed them but now everytime I get on their big ship they start shooting at me. How can i turn this back and play the Quest again? I'm playing on ps4 btw

Reload a previous save. If you don't have a previous save then you are probably out of luck.

As long as you didn't kill any named BoS members, you can go to sleep for a day, and all the members should be friendly again. If you want to be careful, wait 2 days just to be safe.

Yes, wait a day or two then go back, might be a good idea to leave a token of condolence I suggest dropping a few Salisbury Steaks in the quarters

Maxson loves his toy car, he took it back when I just wanna have a look at it.

You could take him toy car gifts and put them in his quarters

Thanks for the answers, I tried to load some older saves, nut I didn't have any that want back untill before the Quest, so I tried to sleep for two days and go to elder maxson, buy on my way I got attacked by a vertiberd. I had to take it down because it was going to kill me. Is there anything I can do now?

Kill them all. Phat lewts.

If it failed a quest you are indeed screwed. Almost positive you cannot restart quests. Reload a save and remember to have saves during missions. Improper use of artillery has caused me many similar problems.

If you are unlucky to kill "innocents" - not red target, you may walk free if youre not spotted/seen by others. Problems with giving companions granates/molotovs that they may be using them into a crowd of folks "red" and innocents. I always save game before a fight or entering new area. Shooting wrong ones, may getting into trouble. Even game do quicksaves, it's safer save by myself. I also do backup of savegame dir now and then to other harddrive, so if main drive doesn't work anymore, install the game again on a new disk, but savegame still intact.

Cheers,

-Klevs