Get 100% Synch by performing the corresponding tasks in the following Assassination missions. The missions are assigned to you by Niccolo and are accessed at various pigeon coops:
MISSION - TASK "Two's Company" mission - Kill both targets with your hidden blade. "Tactical Correction" mission - Finish the memory within two minutes. "...And Three's A Crowd" mission - Kill the three targets within two minutes. "Serf's Terf" mission - Assassinate two guards with the hidden blade. "The Three Amici" mission - Kill the targets with the hidden blade. "Red Letter Day" mission - Kill both targets in under sixty seconds. "The Merchant Of Rome" mission - Use the Assassin Recruits to assist in a diversion. "Bearers Of Bad News" mission - Do not let your targets call for reinforcements. "Cardinal Sin" mission - Kill only the Cardinal. "Turning The Tables" mission - Kill at least one Brute, one Seeker, and one Papal Guard with his own weapon. "Graduation" mission - Do not lose any health squares. "Brutes And Brutality" mission - Kill all targets in under fifteen seconds.