A man removes a hidden machete from a table and chops off a police officer's head; the actual beheading is not shown.
We see five men kneeling on the ground with duct tape covering their mouths (most of them have bloody noses), and another man approaches them from behind and shoots four of them point-blank in the head (we see a spray of blood and brain matter from the wounds); when he approaches the fifth man, his gun jams and he smashes the crying, gagged man (his nose is bloody and there is blood on his shirt) in the head with a hammer (just offscreen).
Police officers corner a boy at the end of a hallway, one of the officers shouts at the boy, telling him not to move, the boy runs through a door, an officer fires a shot and in slow-motion we watch the bullet rip through a door and hit the boy in the throat while another boy watches in horror and blood sprays from the dying boy's neck. The image is out of focus however, so not much is seen.
A police officer from within an apartment building looks out the window and a sniper shoots him through the goggles, hitting him in the eye (blood fills the goggles and pours over his face and he drops to the ground, dead).
A police officer shoots another police officer point-blank in the face and we see the spray of blood from the gunshot wound.
A man tries to attack a police officer, the officer grabs the gun from the man shoving him against a wall and shooting him in the neck (blood sprays against the wall).
During an extended and violent fight we see a man hitting another man in the stomach and torso until another man joins to help the injured man fight the attacker; they kick and punch one another, throw each other against walls and the floor, one man stabs another man in the neck with a broken light bulb (we see blood pulse from the wound), they continue to fight until one man collapses to the ground, covered in blood, and another man twists the light bulb in the other man's throat and he collapses to the ground with blood gurgling from the wound as the two other men kick him in the torso repeatedly.
During an extended fight scene we see three police officers storm into a room filled with men making drugs: the officers kick, punch and body-slam the men, one of the officers and one of the men stand on a table and flip each other to the ground, the officers spin the men into a wall, men are shown using chains as weapons, a police officer kicks a man in the face, and an officer throws a knife into the back of a man who is holding another officer at knife point (the officer is dropped to safety); after the battle, the police officers kill all the men in the room and many bodies are seen spread across the room.
During an extended and violent fight between a police officer and a man who threatens to kill the officer with his "bare hands," they kick, punch and tackle one another, throw each other to the ground and against walls, and we hear the snap of bones as they slam one another; we see blood pouring from mouths and noses, and one man grabs the other and snaps his neck, dropping his dead body to the ground and then drags the body behind him (we see a trail of blood on the ground).
During a slow-motion onslaught we see a police officer propping up and carrying an injured police officer; many men attack the two police officers, the first officer fights the men as they attack him, and they stab one another with machetes and knives and kick and punch each other in the head, neck and chest; we see a man stabbed in the head, another is stabbed in the neck and a third man is kicked in the arm and neck. Lots of blood shown.
Several men open fire on six police officers: three of the officers are shot and we see their bodies covered in blood and twisting from the impact of the machine gun bullets while the remaining officers fire back and we see an extended gun fight.
Two snipers shoot two police officers from an adjacent apartment building; one of the injured officers screams in pain while one of the snipers instructs the other to allow the man to keep screaming.
Two men are seen sitting in a van, one of the men is shot in the neck by an unseen sniper (blood gurgles from the wound as the man drops to the ground), three men shoot the passenger and driver, the passenger's body shakes from the impact of numerous bullets, blood fills the van and we see blood spray on the van window.
A police officer approaches an open window, bullets are fired through the window, the officer is struck multiple times, including in the neck and blood pours from the wound as he drops to the ground; a second police officer drags the man to safety where he dies seconds later.
Three men are seen in an elevator: the man in the middle stabs one of the men, flips the other man against the wall of the elevator and stabs him in the neck (we see blood spray from both men).
A police officer grabs a gun from a man, shoots the man in the face, shoots two more people and kicks down a door and rushes into the room to zip-tie a man's hands behind his back.
A police officer holds a man hostage at gunpoint, the gun is pointed to the man's temple, the officer pushes away his hostage and shoots him in the head, and the officer then turns the gun on himself but when he tries to pull the trigger, it jams.
As a police officer stands over a hole in the floor of an apartment, unseen men in the apartment under the officer open fire and he is struck in the abdomen and ear; the officer drops to the ground, writhing in pain and we see him being dragged to safety by another officer (we see that a portion of his ear is ripped off, blood is covering his clothing and he screams in pain).
A man covered in blood runs from a room, he screams to a male police officer, "They're going to kill me!" the officer approaches him, the man shoots the officer twice and we see blood spray coming from his wounds as he hits the ground.
A police officer stabs a man in the neck, and drags another man and stabs him in the throat with a piece of broken wood; the officer fights with two more men, stabbing one in the cheek and kicking the second to the ground when another man enters the room and they wrestle and punch one another until one man throws the another out of a window, the police officer throws himself and a man from the 8th story window, he holds onto the man, using his body as a cushion when he hits a vented grate with a thud, and the officer rolls off the dead man's body and stumbles into a room, unharmed.
A police officer is cornered by four men, the officer attacks and defeats the four men with kicking and punching; we see one of the attackers being stabbed in the face and the final attacker is kicked to the ground.
A police officer interrupts several men torturing a man (the man's hands are tied to the ceiling, and he is partially dangling), and the officer attacks one of the men, flipping him over a stairwell to the ground below, and he flips another man over, folding him backwards over the railing (we hear a snapping sound).
A man stabs another man in the hand and we see blood coming from the wound, with the knife still stuck in his hand.
An unseen police officer garrotes a man and we hear him gag and see his body slump to the ground, dead.
Several men walk down a hallway filled with dead bodies; one of the men uses a machete to stab a dying man in the head.
An injured police officer is placed on a sofa as a second officer attempts to dislodge a bullet in the injured officer's stomach (we see blood cover the man's torso and a brown ooze comes from the bullet wound as the other police officer digs around for a bullet); the injured police officer screams in pain.
We see men dragging the dead bodies of two police officers and a trail of blood is visible behind them as they place them on a pile of other dead officers.
Several men enter an apartment, they attempt to flip over a mattress that a sick woman is sitting on and they pick up things in the apartment and smash them; one man stabs a machete through a false wall repeatedly and we see two police officers hiding behind the false wall (one of the officer's cheeks is cut with some blood as a result).