Create a Destructible Mesh with different affects

hi guys !
i have some problem with creating my custom DM
i want to create a DM to have different destruction on different guns like pistol , rifle and launcher
i have created a wall in physx lab that have different destruction on rifle and launcher but it isn’t exactly what i want
in my DM , rifle fracture small chunks and launcher fracture it to big chunks and everything is fine
BUT i want to my rifle only destruct the surface and not able to make a hole on the wall and only the launcher bring the wall down

thanks for your helps