Basically, the US Army has a piece of equipment that is called the "Unattended Ground Sensor". Basically, it is a sensor that monitors seismic and acoustic activity in the vicinity.
For PR, I think this would be a special addition for the Commander to have. With a limited quanity of sensors, they could be used to "keep an eye" in remote areas, as well as in choke points - such as the bridges in Qwai River.
The way the sensor could be used in game is that if there are enemy vehicles or personnel wandering around in the radius of the sensor, it would post an alert and a marker (or perhaps a constantly updating position) where the enemy is.
The sensor could be planted the same way as a mine, and could be destroyed if discovered or even ran over by accident. Only the Commander would have access to the sensor and only he could see the information, which would be relayed to the Squads.
Unattended Ground Sensors - Wikipedia, the free encyclopedia







