Also using the Berserk Pack, you can pick up stunned Former humans and Imps (a "stunned" monster will have had its arm or leg blown off and be kneeling on the ground) to use as meat shields against projectiles. The regular attack allows it to be thrown at an enemy, while the alt-fire drops the barrel to set it as a trap. When a berserk pack is collected, barrels can be picked up by alt-firing with the fists while aiming at them. Using the Berserk Pack, you can pick up Lost Souls and Barrels and throw them. Wolfenstein SS Nazis will drop their MP40 sub-machine guns upon death, which the player can use for himself (see Weapons section).They are also much smarter than the -Vanilla counterpart, they fire longer fire bursts, and will attempt to dodge enemy's attacks with circlestrafe Pain Elementals now explode upon death, causing often fatal damage to the player and nearby monsters. The Spider Mastermind's minigun is now a high-calibre rotary cannon loaded with exploding rounds. The Cyberdemon gains a new melee attack: a devastating stomp, which against the player is almost always an instant kill The Baron of Hell has an attack where it can launch 3 projectiles in a wide spread instead of one. The Cacodemon can shoot two projectiles in a short amount of time, and can shunt itself out of the way of incoming attacks. The Imp has a leap attack similar to the in Doom 3. Shotgun guys fire 5 pellets at a time instead of 3. The zombieman has 50% of chance to fire his gun 3 times during his attack instead of 1. Barons of Hell will perform a fatality if they kill imps, demons, and zombies in an infight.
Barons of Hell, Imps, Demons, Cacodemons, Revenants and Hell Knights will perform fatalities on the Player and friendly marines if they kill him with a melee attack. Shooting bullet weapons close enough to a wall will cause you to be hurt by shrapnel. Weapon sound effects are added, such as ricochets and casings bouncing. This also happens to liquid, when a marine or a zombie shoots it. Marines and monsters now wade through a liquid instead of walking on it, also wading through liquids causes a splashing sound to be played. Enhanced lighting and shadow effects for decorations and projectiles similar to the Doomsday engine. Barrels and other explosives expel smoke upon detonation. Enemies may randomly drop beserk packs upon death. The player's ammo capacity for bullet weapons has been increased from 200 to 300 (and from 400 to 600 with a backpack). The player can assign the reload button to a specific key, though after a specific number of shots the weapon will reload automatically. Most weapons must be primed and reloaded. Especially, the Super Shotgun, when firing both barrels at once. If you kill some monsters with the chainsaw or rocket launcher, you can pick up their weapons (for example, the Mancubus' flame cannon or the Revenant's rocket launchers). Some corpses can be pushed away by kicks and punches in a way that resembles ragdoll psychs. Corpses can be further mutilated upon death. When enemies are directly hit by rockets, the enemy is reduced to a large pool of blood and guts in a When small enemies such as zombies and imps are hit in close proximity to an explosion, the enemy is dismembered and trowed away in a way that simulates a ragdoll psychs effect.
Body parts can be torn apart by regular fire on various locations on the enemy's body, cut in half with the Chainsaw, or melted with the plasma gun.
Fake cracks and/or bullet holes may appear on the screen when you get injured. Blood will be displayed on the screen if the player kills an enemy up close. 3d bloodspots allow all textures to be covered with blood, including the floor and ceiling. Enormousness increase of blood and gibs to make a gorier and more violent atmosphere. Headshots deal as much as double damage (depending on the weapon), and can gib the monster's head for one of many special death animations. Implementation of headshots for all monsters, except the Cacodemon, Lost Soul, Pain Elemental, and Arch Vile. Here's Brutal Doom's features taken from a compilation list on moddb: