I successfully interrogated the legion prisoner and found out captain curtis was a spy. I went to captain curtis and talked to him. I said i was a legion spy to gain his trust. He told me his plan and gave me the bomb ingredients. Being the ncr lover that I am I went to captain hsu to reveal curtis' plan and save the day. Unfortunately now I think since I started the quest out this way I cant complete it by supporting the ncr. The game now thinks I'm a legion spy. Is there anyway I can finish the quest by helping the ncr or am i screwed by bad quest design once again?

i cant get that far hes hostile to me for no apparent reason

bump

I am supposed to disarm the Bomb on the Monorail which i did and now there is no topic when i talk to Hsu about that even though the Questlog says i have to report to him.

P.S killed curtis in the tower he was hostile no talking was possible

Once I found the monorail - because in my game Quest Markers are wrong 50% of the time and will tell me to keep going back and forth through one door instead of where I go beyond that door - I walked out to it and it just took off and exploded. Didn't even get a chance to look at it.