Lieutenant Colonel Gregory Barrows
Soon every major city in the U.S. will be engulfed in a sea of flames!
~ Barrows' first words before battling the V.S.S.E. agents

Lieutenent Colonel Gregory Barrows is the main antagonist of Time Crisis 4. He is the commander of the Biological Weapon Special Operations Unit, also known as the Hamlin Battalion.

History of Hamlin Battalion

The Hamlin Battalion is a top secret U.S. military unit specialized in the training of animals for military use and it is comprised of best soldiers from the Army, Air Force, Navy and Marine Corps and under the command of the U.S. Army, it was formed after World War II, and because of its inhumane nature, the existence of the Hamlin Battalion was limited amongst the chain of command and it was never made public.

Initially, the trained animals were mainly used for mine clearing, but the Hamlin Battalion began to shift its focus to the manipulation of genetically enhanced creatures for use in battle while continuing its secret research in the 1990s. However, practical application of the research was difficult and several soldiers died while conducting experiments. In fact, there were numerous incidents which were either not made public or were covered up such as an incident which one subject involved in a research managed to escape the facility which ended in a destruction of an entire island and the incident being covered up as a missile test.

In Time Crisis 4, the Hamlin Battalion goes rogue and all elite soldiers are working for their leader, Lieutenant Colonel Gregory Barrows, while the contingents of the Hamlin Battalion work for First Lieutenant Jack Mathers, his brother, Frank and Captain Marcus Black.

Time Crisis 4

The U.S. military's Joint Intelligence Division receives information that a biological weapon, code name "Terror Bite," is being seized and fallen into the hands of a terrorist organization, presumed to be W.O.L.F. or Western Order Liberation Front. Later in the story, it turns out that the enemy the V.S.S.E. agents and the U.S. Army Captain William Rush fought against are not W.O.L.F. terrorists, but a unit of disgruntled American soldiers that is plotting to destroy the country for reasons unknown until it is revealed that Colonel Barrows had received poor treatment and lack of authority throughout his service in the U.S. Army.

As Agents Giorgio Bruno and Evan Bernard, as well as Captain Rush, fly to a military weapons research facility in Wyoming before the Hamlin Battalion gets there, they engage a high ranking member of the Hamlin Battalion in a gunfight and fistfight, but find that they are too late to arrive as the door holding the Terror Bites opens. The heroes then receive word that the Hamlin Battalion is attacking an air force base in Colorado and are now using it as their headquarters.

The trio soon learn that they have taken over the base because there are XA-60 Ex stealth prototypes armed with nuclear cruise missiles and are planning to use them to target all major cities in the United States. When they arrive, they are confronted by Wild Dog, but he is soon defeated. Giorgio, Evan and Rush eventually reach the UCAV hangar where they are confronted by Barrows himself. An all-out gunfight erupts between the V.S.S.E. agents, the National Guard, and the Hamlin Battalion and Barrows eventually retreats to the higher ground. After destroying the stairs leading to the controls, the National Guard form a man-made staircase to continue fighting Barrows and to stop the UCAVs from reaching their targets. Then, Barrows is finally defeated and the nuclear missiles have been launched before Captain Rush gives the V.S.S.E. agents a boost jump and quickly press the big red button on the control computers which sends the ceasefire order (self-destructs all nuclear missiles and signals the UCAVs to return to base).