Ok, So I was looking at the tutorial on how to mod guns and stuff. So, I decided to try to make my own mod. Since, the MP7 is my favorite gun and I have the G36E, I made the G36E to MP7.
1) Download the file.
2) Extract the file.
3) Locate your combat arms game folder, Usually in (C), Program Files, Nexon, Game.
4) Put the file in your game file and if it asks to replace press yes, but make a backup just incase you don't like.
5) Thank Me =D