Hi marshal Ney
If your SH3 Disc is only 4/5 years old & didn't come with the manual booklet & glossy map & it says FOCUS or revival on the bottom right of your DVD case then your sh3 is already patched but if your SH3 is the Original 2005
Release then heres the patches from the Ubisoft support site
you have to download the right patch USA or Europe DVD or Download Version of the game
hope this helps
http://www.silenthunteriii.com/uk/updates.php