Walkthrough for Great Men Are Not Always Wise of Red Dead Redemption.
1. Go to G mark in the Map to meet Agent Edgar Ross at the Blackwater (Great Plains).
2. Climb up the ladder and go to the X Mark.
3. Aim the main door of the bank and kill whoever is shooting at people.
4. Go to bank and open it's doors by shooting the knobs.
5. Free the hostages then go upstairs.
6. Go outside and call your horse or use one of horses on the street and follow Dutch behind the Agents.
7. Kill Dutch's army and then go to the Yellow Mark.