I think there were problems with it on all the systems. There's a sequence in the game where something that's supposed to happen doesn't and it causes a game-stopping glitch since you can't proceed.
I bought the Xbox version the day it came out and I got past the part with no problems, however.
My CC was the same way. I was the ONLY one there for the sale. A family walked up while I was sifting through the bin and remarked about what a great deal Rainbow Six 3 was ("You can't even get a headset alone for 10 bucks!"), then walked away.
Just as I was finised another guy walked up who...