Miller's keycard is not a bank keycard it's a card to the room next to his office in TF29 (NSN room) which is where you have your next mission, the other card belongs to the Talvos security company or something and I know how to get to their vault but I won't spoil it for you. What I will tell you is that it's not thorough the lift in the bank so don't waste your time there I spent 5 hours yesterday trying to get through only to realise that it's exclusive to a mission that I never played.
I was fairly certain the card I picked up in his apartment said something about being for the bank, because I thought it was weird to get 2 of them right after each other like that while just running around doing random things. I found his apartment completely by accident (broke in to the apartment next door and crawled through the vents) right after I had talked to him for the first time.
So I have no idea when the mission you are talking about is actually coming up.
So I have no idea when the mission you are talking about is actually coming up.
I'll just have to see how it all works out soon enough.