foo, if you want to cheat, go ahead and cheat. Put peanut butter on the disk and fling it out the window. Whatever. It's your $60. Just accept the fact that Microsoft wont give you the credit that somebody, who worked through the same problem you bypassed, is getting. You won't get credit for beating level 4 because you skipped it. Cool. Gamerscore means nothing. If it means THAT much to you, make a separate "cheater profile". Cheat all you want. Use your "legit profile" when you go online. Be happy.
The End