difficulty achieves
 

007 - 50:gsicon: Complete all levels on a 'Classic' difficulty.
http://www.xbox360achievements.org/i...6/-w7nQQ==.jpgSecret Agent - 50:gsicon: Complete all levels on ‘Agent’ difficulty or higher.




if you play on classic difficulty and then agent

will that unluck both those achievements???

Indeed it will

I have done it on classic but the agent achievement has not unlocked for me