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{{Monster versions|disambig={{thisisabout|monster|doom1}}|doom4=Possessed security|doom5=Soldier (Shield)}}[[ImageFile:E1m1 shotgunner.png|thumb|right|A shotgun guy attacks in [[E1M1: Hangar (Doom)|E1M1: Hangar]]]]

[[ImageFile:sgtnojoi.png|thumb|right|Shotgun guys loitering in [http:{{Idgames|file=levels/doom/www.doomworld.comdeathmatch/idgamesj-l/index.php?idjoi-cm1|title=694 JOI-CM1.WAD]|linkonly=1}}]]This type of zombie is armed with a shotgun, which is less powerful than [[Shotgun|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 about 3/10 of a second and fires a single round. Each pellet has the same dispersal as a trooper'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. After firing, the monster [[Monster behavior|moves again]].

When killed, the shotgun guy drops its weapon, which contains 4 [[Shotgun shells|shells]] (or 8 on ITYTD [[I'm too young to die]] and NM[[Nightmare!]]). If it subsequently [[Skill level|respawns]] or is [[Arch-vile|resurrected]], the shotgun remains. The shotgun guy's chest and its abdomen spill blood as it is felled, assuming it is not [[gibs|gibbed]], which is not uncommon, considering its relatively low number of [[hit pointspoint]]s.

The player's shotgun generally kills individual shotgun guys at medium and long ranges, and can occasionally kill two or more with one shot at close range. All other weapons are effective against shotgun guys, although the [[pistol]] leaves it ample time to retaliate, and the [[fist]] and [[chainsaw]] are dangerous to use because the player risks being shot at point-blank range. This can be fatal if the player does not have any form of [[Armors|armor ]] available.

Very large groups of shotgun guys may suffer significant losses from infighting (as with the [[red key]] area in the user made [http:{{Idgames|file=levels/doom/www.doomworld.com/idgamess-u/index.php?idurmeat|title=12929 URMEAT.WAD]|linkonly=1}}) simply because of the sheer number of pellets being fired. If shotgun guys are encountered in groups, they are usually positioned in formation to minimize infighting from the pellet spread.

Certain stock maps (especially those of [[Knee-Deep in the Dead]]) include a large number of additional shotgun guys on UV [[Ultra-Violence]] as compared with the lower [[skill level]]slevels. Their While increasing difficulty overall, their dropped shotguns also greatly increase the number of shells available to the player.

In the Nightmare! skill levelslevel or under the influence of the {{c|-fast}} [[command line parameter]], the shotgun guy's attack rate increases so significantly that they can make some stock maps in Knee-Deep in the Dead nearly impossible. Notable examples include the starting walkways in [[E1M3: Toxin Refinery (Doom)|E1M3: Toxin Refinery]], and the central hub of [[E1M9: Military Base (Doom)|E1M9: Military Base]].

* Despite being called a "sergeant" in the manuals, the shotgun guy has the type name {{c|MT_SHOTGUY }} in the [[Doom source code]], and the [[sprite ]] prefix {{c|SPOS}}, while the analogous {{c|MT_SERGEANT }} and {{c|SARG }} are given to the [[demon]]. This is likely because the demon was initially named "demon sergeant" in the [[Doom Bible]] (section 7.2).* Depending on the skill level startedchosen, the shotgun guy may be the first monster seen to new Doom players. A large considerable number of them populate [[E1M1: Hangar]] when it is played on [[Ultra-Violence]] or higher.* The official French name of the monster is ''type au fusil''.

|[[Hit pointspoint]]s||30

|[[Pain chance]]||170 (6667.4158%)

|Pain time||6 tics[[tic]]s

[[ImageFile:SposHistogram.png|none|300px|thumb|''Damage done by a shotgun guy's weapon'']]

| [[Wikipedia:{{wp|Standard deviation#Interpretation and application|Standard<br>deviation]]}}

|[[Shotgun guy|Sergeant]]||3.91||1.04||2||7

|[[Lost Soulsoul]]||12.29||2.16||9||19

|[[Boss Brainbrain]]³||29.78||4.39||25||42

|[[Pain Elementalelemental]]||47.41||6.88||40||64

|[[Hell Knightknight]]||58.95||8.61||50||82

|[[Arch-Vilevile]]||82.52||12.01||70||114

|[[Spider MastermindSpiderdemon]]||351.57||51.06||303||473

#This table assumes that all calls to [[Pseudorandom number generator|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 [[Sector#Vanilla Doom|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.

In the [[IWAD]]s the shotgun guy is first encountered on these maps per [[Skill level#Doom and Doom II skill levels|skill level]]: {{col-begin}}{{col-break|width=50%}}{| {{prettytable}} !colspan="4"|Single-player|-!Game/ ''Episode''!!1-2!!3!!4-5|-|''[[IKnee-Deep in the Dead]]'m Too Young To Die'||ITYTD[[E1M3: Toxin Refinery]] and ||E1M3: Toxin Refinery||[[Hey, Not Too RoughE1M1: Hangar]]|-|HNTR''[[The Shores of Hell]]''||[[Hurt Me PlentyE2M1: Deimos Anomaly]]||E2M1: Deimos Anomaly|HMP|E2M1: Deimos Anomaly|-|''[[Inferno]]''||[[UltraE3M2: Slough of Despair]]||E3M2: Slough of Despair||E3M2: Slough of Despair|-Violence|UV''[[Thy Flesh Consumed]] and ''||[[Nightmare!|NME4M1: Hell Beneath]] ||E4M1: Hell Beneath||E4M1: Hell Beneath|- |[[Ultimate DoomII]]||[[E1M3MAP02: Underhalls]]||MAP02: Underhalls||MAP02: Toxin Refinery (Doom)Underhalls|-|E1M3[[TNT: Toxin RefineryEvilution]]||[[E1M3MAP01: System Control]]||MAP01: Toxin Refinery (Doom)System Control||E1M3MAP01: Toxin RefinerySystem Control|-|[[Plutonia Experiment]]||[[E1M1MAP01: Congo]]||MAP01: Hangar (Doom)Congo||E1M1MAP01: Hangar]]Congo|- |[[Doom II64]]||[[MAP02MAP01: Staging Area]]||MAP01: Underhalls (Doom II)Staging Area||MAP02MAP01: UnderhallsStaging Area|-|[[The Lost Levels]]||[[MAP02MAP34: Plant Ops]]||MAP34: Plant Ops||MAP34: Plant Ops|}{{col-break}}{| {{prettytable}}!colspan="4"|Multiplayer|-!Game / ''Episode''!!1-2!!3!!4-5|-|''Knee-Deep in the Dead''||E1M3: Toxin Refinery||E1M3: Toxin Refinery||E1M1: Hangar|-|''The Shores of Hell''||E2M1: Deimos Anomaly||E2M1: Deimos Anomaly||E2M1: Deimos Anomaly|-|''Inferno''||E3M2: Slough of Despair||E3M2: Slough of Despair||E3M2: Slough of Despair|-|''Thy Flesh Consumed''||E4M1: Hell Beneath||E4M1: Hell Beneath||E4M1: Underhalls (Hell Beneath|-|Doom II)||MAP02: Underhalls]]||[[MAP02: Underhalls (Doom II)||MAP02: Underhalls]]|- |[[TNT: Evilution]]||[[MAP01: System Control (TNT: Evilution)||MAP01: System Control]]||[[MAP01: System Control (TNT|-|Plutonia Experiment||MAP01: Congo||MAP01: Evilution)Congo||MAP01: System ControlCongo|}{{col-end}} The IWADs contain the following numbers of shotgun guys per skill level: {{col-begin}}{{col-break|width=50%}}{| {{prettytable|style=text-align: center;}}!colspan="4"|Single-player|-!Game / ''Episode''!!1-2!!3!!4-5|-|style="text-align: left;"|''[[Knee-Deep in the Dead]]''||''40''||''133''||''280''|-|style="text-align: left;"|''[[The Shores of Hell]]''||''32''||''52''||''54''|-|style="text-align: left;"|''[[MAP01Inferno]]''||''64''||''75''||''91''|-|style="text-align: System Control left;"|[[Doom|Doom (TNT: Evilutionregistered)]]||136||260||425|-|MAP01style="text-align: System Controlleft;"|''[[Thy Flesh Consumed]]''||''135''||''191''||''231''|- |style="text-align: left;"|[[PlutoniaUltimate Doom]]||271||451||656|-|style="text-align: left;"|[[MAP01Doom II]]||203||382||483|-|style="text-align: Congo (The Plutonia Experiment)left;"|MAP01[[TNT: CongoEvilution]]||638||894||1041|-|style="text-align: left;"|[[MAP01: Congo (The Plutonia Experiment)]]||282||312||315|-|MAP01style="text-align: Congoleft;"|[[Doom 64]]||229||321||353|-|style="text-align: left;"|[[MAP01: Congo (The Plutonia Experiment)|MAP01: CongoLost Levels]] ||64||111||124

The [[IWAD]]s contain Of the maps covered on the Doom Wiki, the following have the highest numbers of shotgun guysin single-player on skills 4-5:

!Game||[[I'm Too Young To Die|ITYTD]] and [[Hey, Not Too Rough|HNTR]]Map !! Count|-|[[Hurt Me Plenty|HMPWorld Orifice]]||[[Ultra-Violence|UV]] and [[Nightmare!|NM]]2999

|[[Ultimate DoomMAP31: The Eclipse of Betelgeuse (Antaresian Reliquary)]]||271||451||6561392

|[[Doom IIMAP31: Crest of Simplicity Part 2 (Slaughterfest 2011)]]||203||382||4831044

|[[TNT: EvilutionHoly Hell Revealed]]||638||894||1041958

|[[PlutoniaMAP07: Casing Lake (MAYhem 2013)]]||282||312||315808

The shotgun guy makes an appearance in [[Doom 64]], and is the most common type of zombie in the game. However, it uses the same sprite as the [[Zombieman]], but with a different [[palette ]] applied which changes the color of his pantsthe vest. This makes The change is subtle enough that the two monsters are almost impossible to differentiate in the game's darkness. They first appear in [[MAP01: Staging Area (Doom 64)|MAP01: Staging Area]].

In [[Doom 3]] and its expansions, armed zombies called Z-Secs occur in a wide variety of forms, one of which is helmeted with black armor and empty eye sockets, and wields a powerful shotgun which can throw the player back and do a dangerous amount of damage. They are neither as common nor as intelligent as the more dangerous [[machine gun]] -wielding Z-Sec, however, almost never employing cover tactics due to the short-range nature of their attack.