Okay, so i know u need to be playing on hard difficulty to unlock lv. 10 weapons, and my CAW has a lv 9 sword. BUT ON MY GAME I CAN'T CHOOSE THE DIFFICULTY! if it says in the instruction manual, i seem to have misplaced that, oops. anyone else have this problem and how do you fix it?! Thanks for the help, i know it's kind of a dumb question.