Which rehearsal is the fastest?

• A. Back Brief
• B. ROC Rehearsal on contact
• C. Walk-through
• D. Full scale rehearsal

Answer: (A)

In these rehearsals, duration scales with how much is actively practiced. The back brief is the quickest because it is a concise verbal confirmation of the plan, roles, and signals after the briefing. It focuses on ensuring everyone understands what they will do and how they will communicate, without stepping through actions or running through scenarios. This makes it a brief, high-yield check rather than a full drill.

A walk-through goes through each action step by step, reviewing routes, timing, and sequence, which takes longer. A rehearsal on contact adds scenario practice for how to respond to a contact, requiring setup and timing work. A full-scale rehearsal simulates the entire operation with all teams and equipment, making it the most time-intensive.