As the thread title suggests, I find that the Artillery Cannon is broken. Someone changed the range on it to almost nothing and it now has an almost 50% chance to hit whoever fired it, making it unusable.
The image linked below really illustrates my point better than any words could.
(Spoiler: I did a test and hit myself 10 out of 22 times, as in almost half the time.)
https://docs.google.com/file/d/0B3fe...it?usp=sharing
On top of that, you'll notice how the AC won't even fire as far as the crosswalk in front of me and rarely goes beyond the white line on the street.
(It was recorded at 20 FPS and brought down to 10 FPS to reduce file size, so that's why it looks like it's in fast-forward.)