AMM: The Champion, Part 2 - Assassin's Creed Revelations
When you approach your man he briefs you, only now the Brute is after the Printer's father -- who you need to warn, and then you need to kill the Templar Brute.
To get 100% Synchronization on this one you need to complete it without the Herald being harmed. To do that you are going to need lots of stink bombs so go make some before you do this mission -- and be sure to remake them as you use them so you do not use all of the bombs you have, because if you do, you cannot make more until you go to a table...
Dealing with The Champion
After you talk to your man you go to the Printer's father -- a Herald -- and tell him the situation, but as you are doing that your Apprentice notices that you are being watched, and then the bad guys attack... You probably do not have to use as many Stink Bombs as I did in the video -- I was really having fun with this one and perhaps got a little silly... Heh. But I sure stunk the place up!
Anyhow after you kill a certain number of attackers the Brute takes the father hostage, and at that point you simply move over to the marker and sort of jump up and down to distract him while your Apprentice gets into position for an air-kill. If this stage gets bugged (like it did in the video) you can lunge forward and kill him yourself.
Confronting The Champion
Once the guy is down you get the usual confrontation CS and then your 100% Synchronization notice, and bam! Mission accomplished!
That is another Master Assassin made, and good on ya mates!