DNA sequence 2 consists of 5 memories.
Fitting In (Florence, 1476)For this memory Paola will teach you to blend, after that simply follow her around remembering to use blend
(quick tip: blend lasts a little bit after leaving the grey). Now that you've made it back she will teach you to steal. Once the counter is in the corner you will need to steal from
5 people by holding
and walking into them, once done leave the area so people don't catch you.
Ace Up My Sleeve (Florence, 1476)For this memory Paola has sent you to Leonardo, once at his workshop interact with the door and a cutscene will occur in which you get your hidden blade. You will then be out back and tasked with assassinating Leanardo's attacker by holding
after that you will have to pick up the body with
and take him into the workshop pressing
again to drop him in the specified area.
Judge, Jury, Executioner (Florence, 1476)This memory requires you to assassinate Uberto, once you have made your way to the waypoint on top of a roof a cutscene will play, once the cutscene is over dive into the haystack below and use blend as a way to make it past the guards and around that corner where you can then climb up the opposite building and use the hanging plank to jump across. Drop down in the area and assassinate Uberto, cutscene will occur and then you have to escape the area.
Laying Low (Florence, 1476)For this memory Paola tasks you with reducing your notoriety, there are more than enough things close by to do so, including an official which reduces notoriety by 75% for assassinating him, after that simply remove one poster and this memory is as good as synched.
Arrivederci (Florence, 1476)This is the last memory of DNA sequence 2 and it tasks you with escorting your mom and sister, while in the city just walk so gaurds don't get suspicious. You will be bothered by musicians which you could throw money to distract them but I would save your moola. Once you are close to the gate hire some courtesans by pressing
and they will distract the guards allowing you to get out after you lock on and press
again. Continue down the path until the waypoints and Voila!
Once memory is synched the achievement should pop.