A mod that has heavy shells from, now removed from the workshop, WD-Expanded Artillery by Wemd and allow them to be loaded into the Artillery from Vanilla Furniture Expanded - Security.
Now that Wemd has removed their mod, Expanded Artillery, from the Steam workshop, this mod now contains only the shells that were in that mod because I feel like mortars selection from vanilla and other mods are already saturated enough. If Wemd ever wanted this mod removed, It will be so.
If you have Vanilla Factions Expanded - Pirates, Field guns will be able to launch cannon shells.
If you have Fortifications - Industrial, the DEFINITELY NOT Nebelwerfer will accept the heavy shells.
VFE - Sec: https://steamcommunity.com/sharedfiles/filedetails/?id=1845154007
VFE - Pirates: https://steamcommunity.com/sharedfiles/filedetails/?id=2723801948
Fortifications - Industrial: https://steamcommunity.com/sharedfiles/filedetails/?id=2561619583