Full ban reason -
NRP/Validhunting(R2) - as RD, saw a nightmare in maints, then chased them down and killed them with a PTSD without any RP while there where multiple living security officers, including one nearby. Heads of staff should not be chasing down antags when theres an active security force aboard station. The PTSD is for self defence, not to go chasing antags with. -This is a result of a player report against you - Unknown Ckey validhunting RD, round 42204
Essentially what ruko said above.
Also, from the Rule 2 section you pulled
- Heads of staff are permitted to defend their own department and subordinates, but should not be patrolling the station for threats unless there is no security.
While its understandable to defend your department, chasing a nightmare deeper into maints from the main hallways isnt great, The nightmare was not in your department at the start of the chase, and only entered science maints due to you chasing it.
Yet you fired twice at the nightmare before saying anything regarding it, causing it to run off into maints, and only then did you call that it was “by R&D room”.
A short ban for NRP and Validhunting in this case is ideal.
In the future, please try to let security handle situations, if you see a nightmare then inform security, but dont go shooting at it and chasing it if its not already in your department please.