It would be great if bullets from Defenders or perhaps other modded combat robots would also have tracers.

And why is misfires not recommended, it is so cool! This mod does it even cooler than the Distant misfire mod.

Currently too many projects to spare time for fixing such a underused robot...
Think of it as it's bullets being so small that you can't see them
The setting description explains why it's not recommended. I think it was the auto targeting enabling you to shoot at things that are out of reach, wasting bullets