Draft an end-to-end CCTV monitoring and escalation playbook for [SiteName] in [Region] using [VMSVendor]. Define severity levels, triggering conditions, and time-bound actions for operators and leadership. Calibrate response thresholds for assets listed in [CriticalAssetList] and align to a first response target of [SLA_Acknowledge_Min] minutes. Specify on-call roles including [OnCallRole] and backup coverage. Include secure evidence handling, communications, and recovery steps.
Output format: (1) Executive Summary (≤150 words). (2) Severity Matrix table: Trigger, Example, SLA, Owner. (3) Swimlane flow (Mermaid) from alert to closure. (4) Notification Tree table with contact sequence and channels. (5) RACI for each severity. (6) Metrics pack listing MTTD, MTTA, MTTR, % alerts acknowledged within SLA, and a 90-day improvement plan.