Ok, this movie made no sense in a few ways:

1) If Lorraine was working for the Russians, then why did she fight them in their car when they picked her up from the airport? If it was to keep her cover being blown to Percival, why not tell them NOT to pick her up from the airport?

2) Why did Lorraine/Satchel betray Gascoigne to the Russians? One would assume it would be so that the Russians could get the list. So that would mean the list was FAKE, and part of her "feeding russians bad information". But then if the list was fake, why did Percival "find out" from the list that Lorraine was Satchel? That would mean the list was NOT fake. And if the list was not fake, then why would Lorraine/Satchel betray Gascoigne to give the Russian a TRUE list ?

It's fine if the point is that the truth is meant to be obscure, but then don't expect the audience to believe that Lorraine is Satchel. That doesn't make sense either.