http://www.xbox360achievements.org/news/news-9737-Crysis-Achievements-are-Missing-in-Action.html

People are reporting that the achievements are unlocking on their console but on online (xbox.com), last time that happened after the issue was resolved you had to recover you gamer tag to fix it so I think I'll be holding off until this issue is resolved.

Lol Great start with Crysis. I wonder how glitched the game itself will be.

Crysis? achievement bugs? this must be a mistake!

According to Crytek UK the achievement problems have been sorted and it's being rolled out across XBox Live.

"[Update]

We've just received word direct from Crytek UK that the issue with the Xbox 360 achievements for Crysis has now been resolved and is currently in the process of being rolled out across Xbox Live."

wow that was quick makes you wonder why crysis 2 hasnt been fixed. proly cause bad publicity could affect sales of crysis i wonder.

Achievements are completely screwed up. Earlier today I had few mission achievements, the 3 secondary mission achievement, and the zoology achievement. I haven't tried redoing the missions yet but as far as I can see I can no longer unlock the Zoology and 3 secondary mission achievement. Their "Fix" removed all my achievements earlier and I can't unlock them now.

I even have the achievement for completing all secondary objectives and not the 3 secondary achievement.
http://live.xbox.com/en-US/MyXbox/Profile?Gamertag=Bon3zz1001

I played the game while being offline, and unlocked zoology, then went online, thinking the achievement would stay, and kept playing and got the 2nd achievement.
Then when i reset the xbox, the achievements were gone.
So I recoverd my gamertag when i read the list was "fixed.

well, The zoology achievement is not unlocking, i tried it a few times, on and offline. I did get the 2nd achievement, + marathon achievement online.

I recoverd my gamertag 2 more times. But the zoology achievement is NOT UNLOCKING

THE ZOOLOGY ACHIEVEMENT IS NOT UNLOCKING Im not a xbox noob, I got xbox 360 since it came out and got a score of +- 175.000 i know how this stuff is supposed to work. I hope, but doubt it will get a fix. At least Im not the only one. On x360a theres 1 other perspn with this problem.

I HAVE UNLOCKED THE ZOOLOGY ACHIEVEMENT! Heres what i did

Delete the game and saved data, clear the xbox hdd cache, download the game, delete your profile, recover it, reset the xbox, and start a new game! I picked up the turtle, nothing happend for a few seconds, but then the achievement popped up. ! It was worth the +3 hours gamertag recovery i guess.

If you are far in the game, try saving your game on a usb stick or something first, its worth a try, it worked like this for me.

wow, that took me like 12 hours, as i recoverd my gamertag like 4 times, , last one took over 3 hours recovery, at least its unlocked, might be a easyer way without deleting it all, but it worked. i can sleep now

no, it has been fixed. and theres a reply from crytek UK, read the news again and you will see that it is updated.