There used to be a bug in AH where a cannon would spurt out a few rounds at once when you tapped the trigger. I noticed it on the hurri2D's 40mm cannon, watching the ammo counter as I tapped the trigger. That could account for seeing a tracer every time you tap the trigger, but I thought that this bug had been fixed. What I'd like to know is, are tracer rounds more likely to start a fire in AH. Have the incendiary effects been modeled?