AngryBots bullet script problem

I am writing a project and am implementing a few scripts from the AngryBots demo, namely the scripts dealing with firing bullets.

My character is able to fire the bullets, as expected, but the newly generated bullets have lower and lower y values, eventually spawning below the map.

I have checked and my bullet spawn point does not move during the course of gameplay. I also have AngryBots in the same project, so they are sharing the same scripts, but AngryBots works fine. I seem to have everything correctly in place. Could someone who has experience with this demo shed some light on this matter?