Hey shippuden1592 first i just want to say thank you for taking the time to port all of these wepaons to bo1, I just wanted to make you aware that the sound.txt for the BO2 MP5 is using the mg08s "sound directory" sorry if that doesnt make sense Iv only just started to map, I was able to add it myself after a bit, here is the link to download the .txt below.
 
Hope this helps! ​:)
 
Download

I think is dead, but you know what?? I got it, just downloaded it in his discord server before it got shut down or something