Suggestion:
Add triggers (cfgundergroundtriggers) activation logging.
Example:
12:54:16 | Player "Player" (id=123456789abcdef pos=<735.0, 533.7, 1229.1>) has activated the trigger (Breadcrumb pos=<741.294556, 531.522729, 1227.548218>)
This would be especially useful for console server administrators.