Sibling Rivalry: Brothers are always a pain in the butt, but so are sisters. Immediately, Federico challenges you to a race to the top of the church. You can simply run up the face of the building, moving toward hand holds along the way, and easily get to the top before Federico does. Run to the finish line, marked by a white wisp, and as long as you're there first the brief mission is over. For more info, watch the whole gameplay.
This is an Assassin's Creed II walkthrough for Mission 3: Sibling Rivalry.
Mahalo's Assassins Creed 2 Walkthroughs are more than enough information for you to play the game yourself, and they teach you everything your need to be prepared for when playing yourself. This video walkthrough focuses on Mission 3: Sibling Rivalry.
Assassin's Creed 2 by Ubisoft is the action-adventure video game playable on PlayStation 3, Xbox 360, Sony PSP, and Nintendo DS video game consoles, along with Microsoft Windows. It is the direct sequel of Assassin's Creed and revolves around Ezio, and is set in Renaissance Italy. Ezio befriends Leonardo da Vinci, who provides experimental weapons and gadgets, and takes on Florence's most powerful families and ventures throughout the canals of Venice, where he learns to become a master assassin. The Assassin's Creed 2 gameplay is a mixture of action, stealth, and acrobatics.