I'm doing For The Republic, Part 2 and I have to take care of the Great Khans. well i did, as part of a separate quest I obtained in Red Rock Canyon. i go back to hoover dam and colonel moore says i have to go eliminate mr. house. i go on the wiki, and it says that during this quest i need to eliminate the brotherhood of steel BEFORE taking out mr. house. but i didnt get said notification. so am i screwed? if not, is there a workaround?

on top of that, i need the platinum chip (because stupidly i let benny get away) and hes headed for the fort. my rep with caesar's legion is vilified, and when i wear one of their uniforms, and manage to get into the fort, they end up discovering me and attacking me. any suggestions?