how'd u get the catch skull? what difficulty?
yup it was on normal
IWHBYD Skull: In "The Covenant" mission, go to the last tower. Before you get to the Prophet of Truth, there are a series of bridges with Halos. Do not jump through any yet. First, kill the Prophet of Truth, and defeat the bridges of enemies. Then, jump through the Halos in this order, with "1" being at the entrance and "7" being the end near where the Prophet of Truth was located: 4, 6, 5, 4, 5, 3, 4. Alternately, jump through the Halos in the following order: 4, 5, 6, 5, 7, 6, 5, 4, 1, 2, 3, 2, 7, 2, 1, 3, 4, 6, 7, 5, 4, 5, 3, 4. This is much easier in Co-op mode with three or four people. This is the Halo theme if it was played on a phone by dialing the numbers. If done correctly, the Halos will start flashing, and the Skull will appear near the Prophet's ramp. If the Halos do not flash, try again. The Skull description reads "But the dog beat me over the fence." When this Skull is active, there is bonus dialogue throughout the game. IWHBYD stands for "I Would Have Been Your Daddy", which is a level chapter from the original Halo.
You don't need to jump through that many.
My featured guide will show you the easy way to do it.