A multi-purpose GDF land mine. GDF Engineer can install up to three of these explosive devices. Deploying more will make the oldest ones disappear. Mines work in two ways. To use the first one, click fire button to plant a charge and then arm it. The mine will just react when an enemy gets nearby. The second one (triggered with alt. fire button) turns on a laser - if someone will get through it, the mine will go off. Laser mines can be installed only on walls. A later upgrade allows mines to self arm themselves.