modding help

i am trying to mod my m13a3 the starting gun to rec-7 but it does not work i used to just put the files in the combat arms game folder but it doesnt work anymore. i really want the gun so if u could help id be rlly happy. i know i have to inject it but im not sure how to do it if u could show me a video or any other way i would rlly appreciate it.

i am kind of new srry

Make sure your files are Nexon and not lithtech. Read Purples guide on how to inject

Wrong section bro, there are tutorials for this, I'd teamview you but I can't atm.