Captain Marcus Black (マーカス・ブラック大尉, Mākasu Burakku-taī) is the leader of the Hamlin Battalion 3rd company and is thought to be an arms dealer for a European terrorist group called W.O.L.F. (Western Order Liberation Front).
Black has turquoise eyes. It is not known whether he has hair or is bald because of the hood covering most of his head.
Black wears a black jumpsuit with a pull-up mask covering his mouth (the pull-up mask is unzipped when he is killed), pants of regular Hamlin Battalion soldiers design and black combat boots. He also wears green gloves. As for equipment, he has a wrist-mounted wire winch gun attached on his lower left arm to swing from high places and hurl heavy objects. He has a device which prevents the Terror Bites from attacking him on his waist. As for weapons, he is armed with a custom-made Barrett M107 anti-tank rifle which he fires in one hand. Said weapon also has a charging ability to fire a single guaranteed shot but leaves Black vulnerable while charging the shot. He also uses two different types of Terror Bites, which is dependent on the player's outcome in the third screen battle. The Mite Bites is used if the player succeeds or the Mosquito Bites is used if the player fails.
Black held a low position in the U.S. military due to their harsh treatment for special operations units. In addition, he is unhappy for receiving payment cuts for the front line missions he frequently undertakes. Hence, he is extremely disappointed with the U.S. military and the government. To fulfill his interest of money, he broke apart from the battalion and attempted to sell a truck shipment of Terror Bites to the terrorists at an agreeable price (this action will cause Frank Mathers to call him a backstabbing traitor). The truck shipment was stopped as Black was forced to defend himself until the moment he was killed. The moment Giorgio, Evan, and Captain Rush inspected the corpse of the paramilitary members, including Black, it appeared that Black, like all Hamlin Battalion members, betrayed the United States. Players must play the PlayStation 3 version of the game to find out if "W.O.L.F." was an organizational disguise of the Hamlin Battalion (to avoid prosecution) or if Hamlin simply betrayed the U.S. and allied themselves with "W.O.L.F.".
|“||You want it? Then come over here and take it!||„|
|~ Marcus Black's first words before battling the V.S.S.E. agents and Captain Rush|
|“||You guys are finished!||„|
|~ Marcus Black, before the screen battle|
|“||You don't know when to quit, do you?||„|
|~ Marcus Black, if players fail the third screen battle|
|“||He was from the U.S. Military?||„|
|~ Captain Rush, upon learning that Marcus Black was once a member of the U.S. Military|
- His blood type is AB.
- He is the only boss that the player has to battle in a screen battle (Wild Dog does not count because he does not engage them in the fifth screen battle).
- In the third screen battle, he houses 40% of Enemies conditions (x5 Lifebar holds 10%, x4 Lifebar holds 10% and x3 Lifebar holds 20%).