Please add KillermachineASmissiles.cdds in your grafics.cfg file

.Kh-15 in not part of the default game so you need to add it in dbweapons.lua and you have to take 
CLSID from names.lua and add it in dbweapons.lua file, but this will make game incompatible online.
I have included the model here so that who ever whats to add it can have fun with it.