Go to the Title sceen where you can see: Campaign, Multi-player and Zombies. Now press The left and right trigers fast. (bleep bloop)
go to these links to find out how to get another achievement while your standing:
" Sometimes breaking out is glitched and will not work, just reboot game then try again. " - ThomasKorat
Let me know what you liked and disliked ( gave a negitive vote for (thumbs down)) so I can make all of my solutions better!