Bug with quests Preston Garvey (Fallout 4)

MC Creed
Keep away to the previous saved game if you don't help , the console in help...

http://fallout.wikia.com/wiki/Fallout_4_console_commands
There's more on this wiki, you can find all the quests with stages and ajtishnikam.

SetStage - moves the job in your job history for the specified stage of the quest. Recommended the team to move past sections of the bugged quests, and not causing the entire quest to become completed. This command can be set only in search of the next stage; it cannot return to you the stages you've already completed.
GetStage Returns the current number of stage of the quest.
SQT - S, as Q West T Arget: Creates a list of the current target of quests. Can also be used to find the Quest IDs.
CompleteQuest - Complete this quest.
ResetQuest - Resets a quest obtained.
FailQuest Failure of this quest.
ShowQuestObjectives or SQO - Shows all current quest objectives. When called without parameters, it returns all quests, completed or otherwise.
completeallobjectives - Ends all current tasks for this quest.
caqs - C omplete LL Q uest S society: ends each quest, giving you all the quest items, and achievements related jobs. Very bad and can lead to the collapse of the game.
Or MoveToQuestTarget movetoqt - Teleports player to questtarget.
ShowQuestStages < QuestID > or SQS < QuestID > Used to display all the stages of the quest.
ShowQuestVars or SQV - Show the variables for the quest by its ID

GOD GAME
Well, finally, thanks

MC Creed
Throw a team which was prescribed in the console.