How much completion percentage are the story missions worth?

#1tnmanPosted 5/28/2010 10:05:32 AM
So, if I only did just story missions from beginning to end, what would my completion percentage be?

Thanks for any help.
#2bsnimunfPosted 5/28/2010 10:13:17 AM

Story + stangers is about 80% if that helps