Um..anyone know this answer??

#1xRDWGxPosted 6/21/2010 9:57:13 AM
my brother and i were arguing about this...
i said that the achievements would be disabled if he inputs cheats...he says they wont.

anyone know for sure?
---
MY WEBPAGE
http://www.1up.com/do/my1Up?publicUserId=6097879