Based on tester feedback, I solved the problem where the Siege Cannons had a hard time hitting their target.
It should now be easier to hit your target using the new shrapnel blast alternate fire mode.
Edit: And true to my previous words, the above image is already outdated again as I've created a new projectile and projectile trail effect (explosion remains the same as it is good), as well as an extra smoke effect from the cannon itself.