Assassin's Creed: Brotherhood/Maps

There are eleven maps you can end up on when joining a game, depending on which DLC update you are on. The maps rotate after every session and some have a night or dusk version, which are community unlocks added by Ubisoft after reaching certain community goals. Each map has similar characteristics, such as chase breakers, hiding places, climbable object and NPCs, but each has its own unique flavor and may require different strategies.

Castel Gandolfo
This former residence of the Pope is located a few kilometers outside of Rome and is mostly played indoors. This is a more confined map with many levels and enclosed hallways. It's easy to get close to your target quickly without being seen, as there are few places that present long stretches of uninterrupted view. The close quarters makes for a quick turnaround for contracts, and makes blending in with the crowds easier.

Rome
Rome is a much more open map with tall buildings clear lines of sight. Lifts will help you quickly ascend to the rooftops and escape your pursuers. Because it is so open, the Hidden Gun ability can be used to great effect and chases can go on for a long time. If you have a lot of contracts out for you, head to the bazaar in the center of the map to locate groups for blending.

Siena
Siena is a nighttime carnivale theme, complete with striped tents, fireworks and a low auditorium in the center. This is a small map like Castel Gandolfo, but without the many levels, so locating your targets is easier—as is being found. Running through the tents can be somewhat mazelike at times, but it pays to familiarize yourself with them so you don't make yourself obvious by climbing on rooftops.