The Pigcop is an enemy in Duke Nukem Forever.
Pigcops are basically large, muscular, anthropomorphic pigs. Most of them are bare chested, but some still wear an EDF uniform, hinting that they were EDF soldiers before they were mutated.
The first type of Pigcop is the classic gun-wielding type. These types of Pigcops have been seen wielding the M1911 Pistol, Shotgun, Ripper, and the RPG (rarely). The ones holding the Ripper wears a wrecked EDF attire while the other three are shirtless. Sometimes if injured, they will drop their weapons and revert to melee attacks. When they do this, they are exactly the same as the second type as detailed below. According to the loading screen, reverting to melee attacks also causes them to regain some health.
The second type, new to DNF, is the melee type. These types are a lot more animal-like than the classic Pigcop. Instead of shooting the player, they will charge towards the player, sometimes on all-fours, and try to pounce or swipe the player with its claws. These guys are always shirtless and look like the Pistol, Shotgun, and RPG Pigcops.
The third type, also new to DNF, is the Super Pigcop. These substantially bigger than the other two types and also wears wrecked EDF attire. They carry the RPG most of the time and have more health which makes killing them top priority over the others.
Pig Cops sometimes carry pipe bombs which they use to flush you out. Normally only the first type of Pigcops carry these.