Kindly ignore it if this is already found out by someone in the old forum -
Steps:
Limitation:
-
Loading the game with already loaded cannon with Gunpower and Cannonball does not work, as these objects (Gunpower and Cannonball) inside the cannon are not loaded in the game from a save file
Update - Solved in Patch 3.130 -
Everyone starts suspecting you as if you have triggered the real cannon infront of them
Logic:
The Explosive when blasted, explodes the bag of gunpowder and shoots the cannonball.