Shotgun Guy/Doom

"Same as the Former Humans, but much meaner, and tougher. These walking shotguns provide you with a few extra holes if you're not careful!"

- Doom instruction manual

The Shotgun Guy (referred to as a Former Human Sergeant in the game manuals, or just Sergeant) is a second type of zombified human the player encounters in the games.

Physical appearance
The Shotgun Guy looks almost similar to their Zombieman counterpart. The main difference is it appears as a red-eyed bald man wearing bloodstained, gray-black clothes, armed with a shotgun.

Combat characteristics
Shotgun Guys emit the same sound will produce the same sounds made by the Zombieman when alerted. They will make one of the three animalistics roars when spotting the player, a pained groaning sound when taking fire, and a quiet moan while it is active.

The Shotgun Guy is very overall similar to the Zombieman, but is slightly faster, has more health, and does much more damage from its shotgun blast than the Zombieman's rifle. Its shotgun, however, is less powerful than the player's shotgun: one round produces only three pellets instead of seven, and each pellet inflicts slightly less damage on average. When the Shotgun Guy attacks, it aims its shotgun at the player for ten tics, or about 3/10 of a second, and fires off three pellets from their shotgun. Each pellet has the same dispersal as a Zombieman's bullet (standard deviation around 9°, to a maximum of ±22°); this is calculated independently for each pellet, so multiple hits are occasionally scored even at very long range, giving the monster a threatening attack even at medium distance. After firing, the monster moves again, though sometimes it may attack almost immediately afterwards. While Shotgun Guys do not have an animation for pumping their shotgun (they do have one in Brutal Doom though), it is assumed that they do so, as they produce a shotgun-cocking noise immediately after shooting.

When killed, a Shotgun Guy lets out the same death cries emitted by a Zombieman - assuming it is not gibbed, which is common, considering its relatively low number of hit points. His death animation is in the same fashion as the Zombieman: chest and abdomen bursting open in a bloody mess, lower jaw partially torn down, corpse falling abruptly on his back. The enemy drops his weapon, which contains 4 shells (or 8 on ITYTD and NM). If it subsequently respawns or is resurrected, the shotgun remains, which can produce the strange effect of a repeatedly-resurrected Shotgun Guy dropping a potentially-infinite amount of shotguns.

Tactical analysis
Due to the dispersal of the pellets from its shotgun, the Shotgun Guy is only a marginally greater threat than the Zombieman at long range. However, at closer ranges their shotgun blasts can damage the player significantly, as they are notable for having a very wide potential damage range- they can do anything from 9 to 45 damage if all three pellets connect, though on average they do about 20 to 30 damage. Many stock levels create ambushes by placing Shotgun Guys on ledges and around corners. They are notable threats at medium range due to their attack firing three pellets to the Zombieman's one.

The spread from the Shotgun Guy's weapon would make the pistol become ineffective to take them down. Instead players should rely on their own shotgun at most, as one shot is generally sufficient to kill an individual Shotgun Guy at medium and long ranges, two or more will fall at close range. Weapons like the super shotgun and the chaingun work excellently against Shotgun Guys, especially when they come in groups. Other weapons like the plasma gun should only be reserved for more threatening enemies like the Imp. Melee combat is ill-advised for inexperienced players, due to the high risk of being shot at point-blank range. Experienced players however, can take advantage of their high pain chance with the chainsaw, and a berserk fist will often gib them.

The Shotgun Guy's contribution to monster-monster battles makes it a weak contributor like it's fellow Zombieman. While it's slightly higher health pool and wider hitscan from it's attacks can generally allow it to dominate a Zombieman, it also fires much less frequently than a player would, preferring to circle its target in an irregular pattern which prevents it from attacking at close range every time. They are also not immune from their own hitscan attacks, making them prone to turning against each other, instead of working together in groups to take down a stronger monster. Thus it can be defeated by a healthy Imp more often than not, and most often by a Demon, though the Shotgun Guy can cancel a Demon's attack with their blast, and can sometimes defeat Demons.

Data
Attributes = Melee Range Shotgun damage
 * -|Bits list =
 * -|Sprites & sounds =
 * -|Range attack =
 * -|Damage chart =


 * 1) These tables assume that all calls to P_Random for damage, pain chance, blood splats, impact animations, and backfire checks are consecutive. In real play, this is never the case: counterattacks and AI pathfinding must be handled, and of course the map may contain additional moving monsters and other randomized phenomena (such as flickering lights). Any resulting errors are probably toward the single-shot average, as they introduce noise into the correlation between the indices of "consecutive" calls.
 * 2) Assumes that direct hits are possible, which does not occur in any stock map.
 * 3) Hardcoded exception to infighting negates damage (excepting indirect damage caused by exploding barrels).


 * }


 * 1) This table assumes that all calls to P_Random for damage, pain chance, blood splats, and bullet dispersal are consecutive. In real play, this is never the case: counterattacks and AI pathfinding must be handled, and of course the map may contain additional moving monsters and other randomized phenomena (such as flickering lights). Any resulting errors are probably toward the single-shot average, as they introduce noise into the correlation between the indices of "consecutive" calls.
 * 2) The target must be close enough to compensate for the monster's inaccurate aim.
 * 3) Assumes that direct hits are possible, which does not occur in any stock map.

Appearance statistics
In classic Doom, the Shotgun Guy is first encountered on these maps:

The IWADs contain the following numbers of Shotgun Guys: