The MH-60L Direct Action Penetrator is a specialized version of the Sikorsky UH-60 Black Hawk helicopter that appears in Spec Ops: The Line.
The 33rd Infantry in Dubai has possession of few of these helicopters, which were put to use in dropping troops to counter Delta in Chapter 4, battling Agent Gould's insurgents, dropping more troops in Chapter 12, and in deploying Zulu Squad to the Radioman's tower to fight Delta Squad, and to attempt to stop Delta Squad's assault on the Marina Gate. It is unknown whether all of these helicopters were eventually destroyed, but at least 2 were destroyed during the events of the game.
The MH-60 has thicker armor and greater lift capability than the AH-6J Little Bird. It has a crew of four consisting of a pilot, a co-pilot and two crew chiefs, and can hold a full squad of soldiers. As a troop transport, it is typically armed with two cabin-mounted machine guns, but can also carry a variety of guns, rocket pods, and missile under removable pylons. The 33rd seems to use the M134 7.62mm miniguns and passengers' weapons for defense and offense, rather than having any mounted weaponry.
It is unknown how many of these helicopters the 33rd Infantry possess. At least 3 are known to be in possession, as one was destroyed at the beginning of chapter 7, another during the ending sequence of chapter 12, and a third being destroyed as Adams made his final stand at the gatehouse. The other appearances may be any of these choppers or a completely separate one, but this is all unknown.