Mission Accomplished glitch help

#1SoapHope5Posted 6/26/2012 9:17:47 AM
I have completed every mission (yes I did the Big Prank) and finished the 2 remaining missions i had during Chapter 6 but I did not get my achievement. I have restarted the game many times and have done other things throughout the game hoping it would eventually pop up, but it didn't. Can anybody help me?
GT: SoapHope5