Those who eventually leave the GROM often become instructors in military units. GROM personnel are highly trained and motivated. General Petelicki, for example, is an expert in intelligence operations, long-range reconnaissance, and diversionary activities. It takes a minimum of 3 years and costs about 1 million dollars to train a GROM operator. All training is conducted with live ammunition.
Candidates undergo long and complicated psychological testing.
An operator's reactions must be quick but composed under stressful situations. In a typical training session, a soldier is placed in a dark room full of figures representing terrorists and hostages. He must then choose the proper silhouette at which to shoot. In another exercise, he is shown a photograph of a target, after which he must burst into a room filled with post-explosion smoke, select the proper target among the many present in the room, and then shoot at it. The GROM is also trained in other operations.