There is no complete justice.
The protagonist of the assassin 1 assassinated the Templar because his master Artur wanted him to atone (that is, he was used to kill several other Eden artifact owners and then took the Eden artifact for himself), and Artur went to kill the Templar.
The protagonist of Assassin 2 assassinated the Templar because Ezio, his father, brother and brother-in-law were all lost by Templar X, and E fought for family hatred. Secondly, the Templar wanted to use the Eden artifact to accomplish his great cause (for example, Cizel wanted to use the Eden artifact to rule the world, and Rodrigo wanted to use the Eden artifact to open the chamber of secrets and become a prophet,,,), but what the assassin yearned for was that all laws would work, and all free societies,, and, of course, would get rid of these tyrants.
One more thing = = The war between the assassin and the Templar has been going on for hundreds of years, which is one reason why E and the Templar can't get along. By the way, if the landlord is interested, please join the Ubisoft fans group (1 10342620) to discuss Assassin's Creed ~ ~ and the apocalypse ~