Assassin's Creed 2 Walkthrough

You can pick this mission up from a man in a small village northeast of the main city. The target, the Archbishop Salviati, is in a compound very nearby. Your contact gives you the details and then tells you that you've got a small army at your fingertips, but truth be told they're not that useful. Just make your way to the gate on the southern wall of the compound.

There's a small group of enemy soldiers outside the front gate, as well as a few archers on top of the walls. Take out the archers from afar using throwing knives before siccing your men on the guards to engage them.

When the coast is clear, you can climb up the face of the wall just left or right of the gate. Ezio says something about wanting to open the gate, and if you really want to you can drop down and try to open the gate via the draw handle just inside the compound. But as soon as you drop down, you'll likely come under attack. Stand your ground and counter attack the many enemies that surround you. So long as you're patient and don't get too aggressive, you should tear through their numbers quickly.

And if you're lucky like us, the Archbishop will join the fray and attack you. He's dressed in a unique attire that resembles pajamas. If you counter attack him, he'll die and complete the task for you. After the Archbishop is dead, your crew will flood into the compound and help you finish killing the enemies around you, completing the mission.