hello every one i resently got AC:for awnser and im curently finishing up campain but i have a problem i was done playing saved and was going to go play endwar but when i came back i had gone back a whole chapter the ac i made from parts i bought was still there but i couldent use it becuase it said i hadent unloocked all the parts it had and had to do the chapter over and rebuy the parts has this ever happend to anybody else?