so this is a little complicated…
in destructible mesh (destructible mesh “editor”) set:
- Enable impact damage
- enable debris
- debris timeout
- debris something (i dont remember name) set from -1 to 1
now you can destroy mesh with projectile impacts, but i recommend to use radial force -> fire impulse for destroying that mesh. in radial force i think you must enable impact damage or something like that…
try these steps… if you wont be successfull, i can send you my screens when ill be at home, i have many DMs working very well… like this 