When I bought Fallout: New Vegas I understood I was buying a buggy product, but I didn't know the extent of it. I'm having tons of trouble with this quest glitch wise. I've checked the wiki (http://fallout.wikia.com/wiki/For_the_Republic%2C_Part_2#Notes_2) and I know that because I have done certain quests before this one, I won't be able to proceed. I all ready completed the quests "Oh my Papa" and "How Little We know", and to add to that, I've all ready killed Mr. House. Since I all ready got the Great Khans to do a suicide run, no dialogue options appear for me when talking to Colonel Moore, and the PC command fixes do not work. Even if I do somehow manage to bypass this problem, I'm dreading encountering others in regards to the Omertas and Mr. House. This is becoming incredibly frustrating.
So what I want to ask is if there is any verified way to get past this quest's bugs? If not, does anyone know if there are any patches coming out to address this problem? Starting over really isn't an option, since I completed the Omerta quest almost 20 hours of gameplay time ago.
Any help would be appreciated.