Expectation: Suppressed weapons, while not completely free from emitting light, should reasonably have almost no light at all cast off them when firing.
Observation: The difference in emitted light levels between suppressed and unsuppressed weapons is negligible, if there is any at all.
Recommendation: (Further) Reduce the light level of emitted light from weapons which are using a suppressor by 90%.
This issue was explored in issue 0000768, but no resolution has been demonstrated and the ticket has been closed.