How to Make a MW3 ISO Smaller

I originally posted this tutorial on Codeleakers.com, but I copied and paste it over here for you guys.
If your using a 4GB USB FlashDrive it's actually 3.75GB so if you use this Method it will make it smaller then 3.75GB. Should be around 3.11GB or so.

Hey guys so I see no one has posted a Tutorial on How to Make the ISO Smaller so I thought maybe I should. All Credits goes to MrOwnership for telling me which ones to replace.

Requirements:
*You need a Program called Wii Scrubber
http://www.megaupload.com/?d=EJ4HQKAA

*Empty .txt file (Rename it to Empty.bik)

Open up Wii Scrubber, Click Load ISO, Browse and Open your ISO, Click Partition and Scroll Down to Videos. The ones that you would want to replace the Empty.bik file with are these:

castle_load.bik
hamberg_b_load
hamberg_load
hijack_load
innocent_load
london_load
paris_ac130_loaad
prague_escape_end
prague_escape_load
prologue_select_load
rescue_2_load

And ones that start with SP_ But not the Default or Intros.

Then Exit out of Wii Scrubber then load with USB Loader GX.

I might add that when you follow this tutorial, and follow all the steps correctly, and take out the campaign completely, it will make the game a total of 1.25 Gigabytes... dramatically smaller!