Assassin's Creed: Brotherhood

Assassin's Creed: Brotherhood Achievements

Perfect Recall

Achieve 100% Synchronization with a Sequence.  

This cannot be achieved in Sequence 1.

To achieve 100% Synchronization for a Memory, you must complete a secondary objective for that memory. These secondary objectives can range from completing the memory within a set time, complete the memory without getting detected or playing through the memory a certain way. Once 100% Synchronization has been completed on a certain memory, it is complete and does not need to be replayed. You can replay any memory that you have not completed to 100%.

The easiest Sequence to complete is DNA Sequence 3; "The Fighter, The Lover and The Thief." The following is the second objectives for each memory. Complete each secondary objective, and you'll earn 100% synchronization for each memory. After you've earned 100% for each memory, the achievement will unlock.

  • Sequence 3-Memory 1: Do not be detected while reducing Notoriety. Remain undetected until rejoining La Volpe at the Thieves Guild.
  • Sequence 3-Memory 2: Kill only the Borgia Captain.
  • Sequence 3-Memory 3: Do not Swim.
  • Sequence 3-Memory 4: None
Rate this achievementAverage Rating (Based on 6 votes)
User Comments
Comment #1 by Shadowkama
Friday, November 19, 2010 @ 10:55:10 PM

Easiest to do this on memory 2

Comment #2 by RoughGalaxy
Sunday, November 21, 2010 @ 12:47:58 AM

What Shadow said, keep in mind that once you have this, you do NOT have to EVER have 100% sync for anything again, and take it from someone with experience, some of the stipulations are pretty outrageous to perform.

Comment #3 by outof36
Monday, November 22, 2010 @ 06:33:22 AM

Actually easiest is sequence 3

Comment #4 by SLACKER 542
Monday, November 22, 2010 @ 08:40:26 PM

so 3 or 2???

Comment #5 by blindsteve
Wednesday, November 24, 2010 @ 09:39:30 AM

definitely Sequence 3, very simple
Sequence 2 has the secret chamber which you have to beat in 8mins, where you could probably do all of Sequence 3 in 15ish mins

Comment #6 by DarkCation
Wednesday, December 22, 2010 @ 01:53:20 PM

Yes totally agree sequence 3 is the easiest. I just did it and it took less than 10 minutes

Comment #7 by WaxierKreater
Friday, December 24, 2010 @ 04:31:18 PM

I got it on Sequence 9 with no trouble plus I wasn't even trying to do it but still got it.

Comment #8 by Kryllic Knight
Friday, December 24, 2010 @ 09:26:36 PM

2 is best

Comment #9 by morno
Tuesday, December 28, 2010 @ 10:42:09 AM

im on the secret chamber i need to do in 8 min i was so close last time..
just give me 1 bloody min more!

Comment #10 by MACCA LFC 4 LYF
Wednesday, December 29, 2010 @ 06:35:15 AM

that secret chamber one messed me up for sequence 2 :(

Comment #11 by Craigpremium
Thursday, December 30, 2010 @ 12:07:13 PM

yeah screwd up my chances to get it on both 2 and 3 ):

Comment #12 by Kuffy96
Thursday, December 30, 2010 @ 04:42:21 PM

u should get the acheivment on the third sequence, much easier

Comment #13 by hydrosugar
Saturday, January 01, 2011 @ 04:30:22 AM

can you get it on the third after just playinng through the first 2 normally

Comment #14 by ApoJake
Monday, January 03, 2011 @ 10:55:50 PM

Yeah, 3rd is not too challenging.

Comment #15 by samsaBEAR
Monday, January 10, 2011 @ 05:31:50 PM

I got it on the 9th without meaning to, if you're having problems, just replay that one

Comment #16 by ELITExASSASSIN9
Saturday, January 15, 2011 @ 06:28:35 AM

It doesnt matter which one but try not to do any of the tougher side missions unless you know you can get the perfect sync for it. 3 was pretty easy but it was the only one i tried b/c the guide.

Comment #17 by Quiksilv3rr
Friday, January 21, 2011 @ 09:37:37 AM

Definitely seq. 2. The 8 minutes to get to the shrine is easy. Any troubles watch the YouTube video

Comment #18 by TheCroixMan
Saturday, January 29, 2011 @ 04:49:09 PM

The 3rd sequence is extremely easy... but can be time consuming just to go between all of the memory starts and collection.

Comment #19 by tammyjewel
Wednesday, February 16, 2011 @ 10:31:10 AM

I got this one on sequence 3 without even trying for it, so I'd say sequence 3 is definitely the easiest.

Comment #20 by TheUglyCasanova
Tuesday, May 17, 2011 @ 10:49:11 PM

This game is just chock full of shitty ass achievements isn't it?

Comment #21 by damonj3
Wednesday, May 18, 2011 @ 05:54:44 PM

What exactly is 100%? Completing all the side quests, no dying, what are the criteria?

Comment #22 by Broady
Tuesday, June 21, 2011 @ 01:14:03 AM

@21 Having 100% means you must complete the full synchronisation criteria during every mission for an entire sequence.

Comment #23 by ThatMarcusGuy
Saturday, July 02, 2011 @ 06:01:58 AM

Definitely Sequence 3 is the easiest

Comment #24 by VeXeD L Ant
Wednesday, July 20, 2011 @ 07:17:33 AM

Memory 2 :)

Comment #25 by Opiate42
Friday, August 05, 2011 @ 08:13:24 AM

I got it on sequence 9 too without even thinking about it and it's a fairly short level. Just keep using health whenever you lose any at all and raiding bodies for replacements as you kill soldiers. Looting bodies almost always gives health.

Comment #26 by Krisko Disko
Tuesday, October 04, 2011 @ 08:23:48 PM

There's no issue with going back and redoing/reliving memories to get the 100%, later on, right?

Comment #27 by CarapauGt
Friday, November 25, 2011 @ 05:43:37 PM


I made it on the da vinci dissapearance.

Comment #28 by esoterikos
Saturday, January 07, 2012 @ 12:47:46 PM

So, it's definitely Sequence 2.5? Or possibly 9 ^_^
Unless it's DaVinci.

Comment #29 by WIN308ROB
Thursday, March 29, 2012 @ 12:38:01 PM

Memory 3 By Far the easiest.

Comment #30 by Hell stone31
Monday, April 02, 2012 @ 07:41:17 AM

memory 9 was easy to achieve this I got it without even thinking about it

Comment #31 by B00uW4ore692
Tuesday, June 19, 2012 @ 09:23:03 PM

I got it on sequence 2. The most nerve-wrecking part of the experience was the ambush in memory 6 where you're not supposed to take any damage. The secret chamber is doable in 8 minutes as long as you know exactly where to go.

Watch a youtube guide (like this one: before you try to play through it, and sequence 2 is a pretty easy to get this chievo on.

Comment #32 by warrenpaul
Friday, June 22, 2012 @ 12:09:19 PM

Sequence 3 is the best to be fair, just make sure you have a smoke bomb for the guards when you have to burn the tower down

Comment #33 by rafa1000house
Tuesday, October 30, 2012 @ 07:22:04 AM

i did it on sequence 2, but the memory on Terme di Traiano its a little hard to finish in 8 minutes when you don't know the path. I needed to restart it.

Comment #34 by phughes930
Friday, November 09, 2012 @ 02:41:36 PM

did this on sequence 2. its the easiest one to do it on.

Comment #35 by asylumspadez
Wednesday, December 12, 2012 @ 05:33:49 PM

Sequence 3 is the easiest because you don't have to deal with the 8 minute run like you do in Sequence 2.

Comment #36 by gypsyburnvictim
Sunday, May 19, 2013 @ 08:49:06 PM

I found this one extremely easy, i'm not sure about anyone else but I got the achievement right after the memory I chose to replay loaded.

Comment #37 by Hurp McDurp
Saturday, November 02, 2013 @ 03:21:31 AM

Just wanted to confirm that I did this with Sequence 2 and was super easy :)

Comment #38 by NecromanceR62GR
Sunday, May 11, 2014 @ 05:17:45 PM

Super easy sequence 2? What?! OK. Don't lose any health while fighting 13 wolf-like guys? I've restarted the memory like 20 times so far because every time there is someone that hits me from behind

Comment #39 by Batou67
Saturday, December 27, 2014 @ 07:07:17 PM

I got this in Sequence 9 without trying too.

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Game Info
Ubisoft Montreal


US November 16, 2010
Europe November 19, 2010

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