This presentation examines an active shooter response conducted under wartime conditions in Ukraine and explores the integration of negotiators into tactical operations. Using a real-world active shooter incident that occurred in 2026 as a case study, the presentation analyzes operational decision-making, coordination between negotiators, tactical teams, and incident commanders, challenges encountered during the response, and lessons learned. The presentation also highlights how the evolution of crisis negotiation capabilities in Ukraine contributed to operational effectiveness and strengthened the integration of tactics and negotiators during high-risk incidents. Participants will gain practical insights that can be applied to crisis response, tactical operations, and incident management within their own agencies.