The "quick" way was to look at the drawings of Seattle's skyline and look for the drawing that has a red rectangle next to one of the buildings with the word "BANNER" nearby. because that building is the one that will need the rope to hoist the "EVILCORP IS POLLUTING SEATTLE'S WATER SUPPLY" sign. The team was in a University of Washington professor's office that was being used as the activists's nerve center, and it had schematics of various buildings around town, labeled with their height.) So easy it hurts, assuming you take a moment to step back and look at your surroundings.
(That reminds me, I need to call Mumsy and tell her to start hoarding the bottled stuff...)
The Operator reminds me of someone who is trying too hard to be like Glenn Hugill, even if he doesn't know it. I like the idea of teams being in their own action movie, but it all goes to hell after the Hit Man final, and the share/steal money decision. If you watch just the four bank-building events and don't care about who wins the final bank, it's not bad.