[ EU ] You 've been hired by Abstergo to study your ancestors genetic memories . You hop into the animus and find yourself experiencing the life of a peasant/artisan/other generic commoner .

Marcus prepared himself as he laid in down, into the animus. Dr. Sorenson had briefed Marcus as to why he was recruited: 
 
 `` We have reason to believe that your ancestor was Marcus Junius Brutus, the famous Roman politician. Not only did he assassinate Julius Caesar, but research has revealed that he led a ring of political assassins and spies, to murder and steal from his political enemies. Somewhere, his organization has hidden that treasure. We want you to find it.'' 
 
 And so, Marcus had trained to relive the life of an assassin: he learned how to stalk silently, scale large buildings, and of course, how to defend himself from attacks, and how to deliver his own. He had spent months preparing. He was ready for anything. 
 
 After the Animus had loaded up, Marcus immediately thought: *I'm was n't ready for this. * Instead of a badass sword, Marcus held a hoe. Instead of a tunic, Marcus wore something closer to rags. Instead of sunny, scenic Rome, he appeared to be in cold, dreary, Europe. He was lied to. 
 
 Out of sheer rage, Marcus threw his hoe at the nearest farm animal, the metal end clonking the cow perfectly ( or rather imperfectly ) on the temple. With a defeated moo, the cow promptly fell over, and died. 
 
 Marcus's head began to pulse, and he saw a message flash in front of his eyes: 
 
 
 DESYNCRETIZED: YOUR ANCESTOR DID N'T MURDER ANIMALS
