Black Ops 2 Zombies How to get all 6 Perks at once

- All you need to do is Buy tombstone and any 3 other perks.
-Then deliberatly down your self and hold X,
-Wait for round to finish
-Before picking up your grave buy all of the perks that you didn't have before hand AND you need to re-buy Tombstone.
-Pick up your Tombstone

You should now have all perks!