Hello my name is Michael and I am new to this scene
Hello
I found out by Gildor from a UE3 Forum post, and decided to try my luck to see if anyone would be able to help with my problem.
This is generally not a modding forum

Medal of Honor Airborne is a UE3 UDK product, when visiting the game directory, in the "CookedPC" folder I located all terrain, map, weapon files etc.
All the files are under the .xxx extension, which from personal research I discovered is some kind of obfuscating way of garbling-up file information.
"xxx" extension for UE3 means "package was cooked for console". Such packages are not openable in game editor, and they're smaller than regular cooked packages.
I'll move your post to the special board for modding. Please check adjacent threads there.