Man, any of those three would be dangerous, honestly. We can only hope it's not Alexei...

[Or McGillis, but he doesn't know how much skill the man has with a sword. Alexei, though? The man is a career soldier, and Marcus isn't so foolish as to think he'd stand a chance of taking him out easily should it come down to that.]

I don't know all of the details of the code, but I do know that Phil knew what it meant right away. That's the important part. As long as they use that code, we can keep whatever info it contains out of the hands of anyone else.