Final answer:
The First Responder Guide for Improving Survivability in IEDs and/or Active Shooter events is a resource for tactics in emergency scenarios, including metal detector usage for finding weapons and explosives.
Step-by-step explanation:
The First Responder Guide for Improving Survivability in Improvised Explosive Device and/or Active Shooter (June 2015) was likely developed to provide guidelines and tactics that first responders can employ in emergency situations involving improvised explosive devices (IEDs) and active shooter scenarios. In the context of a soldier using a metal detector to search for explosives and weapons, as depicted in the reference information, this guide would be relevant to military personnel as well as civilian emergency services who must be prepared for such threats. The use of metal detectors is one method to detect and mitigate the threat of explosives.