-This is for the PC version of New Vegas-

So basically I was somewhat close to the legion up until the part where they tell you to kill Mr.House, which I didn't do and from there on I worked for house so the legion hates me..
The mission where i can earn their trust is failed, there is no mission to get them to like me.
Now the weird part is, after a long time i finally decided to kill House because he was getting annoying (Plus I wanted his penthouse lol) and now i work for Yes-Man and i'm at the part where Yes-man and the boomers will attack the dam.

What i want to do is earn Caesars trust again, I think their faction is kinda cool and i wanna join it.. Ive always wanted to join it from the start, its just i followed the main story line, worked for house and it F'd me up.
Is there anyway I can work for Caesar again? I still want to be friends with Yes-Man too and own vegas still......

Little note, when i enter Caesars fort i get shot and attacked... and i dont mind using console ~ cheats for this (I have a PC) aslong as it doesnt effect everything else besides that much..

Once you fail that quest there is no going back