If you haven't read Nicholas Schmidle's report titled 'Getting Bin Laden: What happened that night in Abbottabad' you need to! It gives a great first person perspective account of the details and the overall big picture. You come to find out that several of the Seals opted to carry HK MP7's while others chose silenced M4s; amongst other things. It is amazing how close the mission came to becoming a complete disaster, but shows why the American fighter will always come out on top; and even excels when improvising.
Here's an excerpt:
"For God and Country... Geronimo."