Found a sulution, well kinda, when you get out of the elevator, save, then find the gunner that is the problem, if it crashes when you do no problem, start from the save, its gonna be the same gunner at the same place. Now, open the connsoll, and use the "tcl" go to the gunner ***important, you have to open the consol before the gunner takes out its gun, can crash from just that*** click the gunner so you get the id on the middle of the screen, then vrite "setpos z 10" gonna move the gunner away under the world so its not your problem, you can now finish the quest PS: a loot easier if you use the bullet time mod, *need "Mod Configuration Menu" for it* https://www.nexusmods.com/fallout4/mods/9325