Many thanks for the replies.
Thanks for the info on no-clip, I never played the gary’s mod version so didn’t know about v or tilde.
Sorry I didn’t explain the cannon issue very well. When at rest the cannon is twisted at 90 degrees to its carrier, as in the previous post. When you set its firing point it is still twisted at 90 degrees to its carrier. See below
The carrier is normally in line with the direction the cannon is pointing, like this.
and oddly they are in Treasure cove,
but for some reason the carrier model is twisted around 90 degrees so it is not in line with the cannon in the editor and when you test.
While on the subject of launchers in general.
They appear to behave differently when testing in the editor and when playing the map. So thats cannons, drums and gysers. They work correctly when playing via tab and the ball lands at the marked point. However they are too weak when testing by interacting with the start pad (pressing ‘e’). In this case the ball lands short and not at the marked point.
Edited on 16 Aug 24 - changed wording to hopefully try and explain what I am going on about better.