The actual GAMER Manpack consists of a miniaturised radio base station and a laptop with an exercise-command-and-control system.
[1] The instructor decides through the system what is to happen in the exercise, this is communicated through the radio.
Information about what is happening during the exercise is sent back to the system through specific vests the soldiers are wearing (Personnel Detection Devices (PDD's)[2]).
[3][4] The instructor then follows how each soldier acts as an individual and a member of the group.
For example, in 2009 the UK Ministry of Defence Police purchased three GAMER Manpacks and related products to be used in their training.