Assassin's Creed 2 Walkthrough

Find Antonio in the north of Venice and he'll tell you about your next assassination target, Silvio. When the cut scene ends, so does the mission.

Make your way across town and you'll find an injured soldier on the rooftops that gives you some new information on finding Bartolomeo, who should in turn help you with Silvio. You get a large green area added to your map, but note that it's overlapped by a restricted area. Expect trouble.

Take to the rooftops and make your way toward the target. It'll be hard to spot Bartolomeo from the rooftops since he's caged inside, but you can easily spot the semi-circle of guards surrounding him. From the rooftops, target the guards and you can take out two of them with an assassination, leaving just two more to kill. Fight 'em off, and then unlock Bartolomeo.

As Bart breaks out, more enemy guards appear. Fight 'em off, and then start making your way toward the new target to the south. Unfortunately, Bart isn't a climber, so you'll have to stick to the streets. Do your best to avoid guards along the way. While they won't necessarily bother you if you've got a low level of notoriety, Bartolomeo will pick fights with every guard he sees. And he sucks at fighting. Ol' Bart will end up getting the short end of the stick in every fight, so you have to save him. Thankfully, since he's picking the fights the guards won't notice you, and you can just walk up behind them for easy assassinations.

But again, it's best to try and avoid guards altogether. When you reach the waypoint, a cut scene quickly interrupts you and leaves you with a couple of guards that you must fight. Kill 'em off and then open a nearby gate to close the mission.