Marines with Marine Corps Air Station Iwakuni's Special Reaction Team (SRT) entry element stack up and prepare to clear a building during training.
A typical 5-man Special Reaction Team entry element comprises of a number of specialist roles, including Team Leader, Defenseman, Rear Security and Pointman.
The position at the front of the stack is taken by the Pointman.
An SRT's Pointman's responsibilities include leading the entry element during approach, conducting reconnaissance, carrying any special equipment such as ballistic shields, recommending routes of approach and providing security for the element.
Each member of the SRT entry team is cross-trained in all disciplines so they can adopt the other roles if needed.