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MP40 (S.O.G.)

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« The MP40 is and open-bolt, blowback-operated automatic submachinegun chambered for the 9×19mm Parabellum cartridge. Heavily used by infantrymen and paratroopers in WWII its modern features made it popular among soldiers. During WWII captured German weapons were supplied to the Viet Minh to use against the Japanese.
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The MP40 9 mm submachine gun.
The MP40 9 mm submachine gun.

The MP40 is a 9 mm submachine gun used exclusively by the Viet Cong in ArmA 3. It was added with the release of the S.O.G. Prairie Fire Creator DLC.

Overview[]

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The MP40 is a blowback-operated submachine gun that fires from an open bolt. It is chambered to fire the 9×19 mm cartridge.

It feeds exclusively from 32-round straight box magazines, and can attain a fire rate of approximately ~ 571 rounds per minute[CfgWp 7][Formula 1] with a muzzle velocity of 425 m/s.[CfgWp 8]

MP40s are unable to mount a bayonet and it is not possible to attach a sound suppressor onto the muzzle. The MP40 also cannot be customised with optics, though its ironsight does allow the user to manually adjust its zeroing between two fixed settings of either 100 or 200 metres.[CfgWp 9]

Ironsights[]

Arma3-sogpfmp40-ironsight-overview

The MP40's ironsights can be manually zeroed, though it can only be set to two fixed range settings of either 100 metres or 200 metres.[CfgWp 9] By default, MP40s utilise a zeroing of 100 metres.[CfgWp 10]

Melee[]

Melee attacks with the MP40 involves striking targets with a buttstroke. Attacking in this manner can inflict a maximum of up to 7 points of damage if the buttstroke successfully connects with the target.[CfgAm 1]

It should be noted that melee attacks cost stamina and will drain 3.06 points of stamina[Formula 2] whenever a buttstroke is performed.[SCR 1]

Ammunition[]

Ammo parameter 9 mm (Ball/Tracer)
Base damage value 7.5[CfgAm 2]
Aerodynamic friction -0.001513[CfgAm 3]
Muzzle velocity (m/s) 370
[CfgMa 2][note 1]
Actual: 425
[CfgWp 8][note 2]
Expected velocity (m/s) 360
[CfgAm 4][note 3]
Penetration depth (mm) 4.44
[CfgAm 5][Formula 3]
Actual: 5.1
[Formula 4][note 4]
Deflection angle (degrees) 30°[CfgAm 6]

MP40s can only load two types of magazines[CfgWp 11], both of which share the same weight of 8[CfgMa 3] "mass" units:

32Rnd. MP40 Mag[]

Arma3-ammunition-sogpf32rndmp40

Standard 32-round straight box magazine loaded with a mix of 9 mm ball and tracer ammunition.[CfgMa 4]

Every fourth round fired will always emit a visible red tracer.[CfgMa 5] Only the last four rounds of the magazine consist exclusively of tracers.[CfgMa 6]

32Rnd. MP40 Mag (Tracer)[]

Arma3-ammunition-sogpf32rndmp40

Dedicated tracer magazine. All thirty-two rounds of the magazine will emit visible red tracers when fired.[CfgMa 7][CfgMa 8]

Magazine compatibility[]

Weapon name
(Classname)		 32Rnd. MP40 Mag
 32Rnd. MP40 Mag (Tracer)
MP40
(vn_mp40)		 ✔ ✔


Trivia[]

  • Its stock will automatically unfold and fold when not in use.
  • Update 1.1 slightly adjusted the position of the model's memory points so that the gun no longer clips into the camera while it is being fired in first person.[1]
  • For unknown reasons, the MP40 was the heaviest out of all the SMGs in its class prior to Update 1.2 (for comparison it weighed almost the same as the M60 machine gun). This was eventually corrected after the patch was released, which cut its weight to a far more reasonable 45 "mass".[2]

Gallery[]

Config/script references[]

CfgAmmo

  1. ↑ CfgAmmo >> vn_melee_stun >> hit
  2. ↑ CfgAmmo >> vn_9x19 >> hit
  3. ↑ CfgAmmo >> vn_9x19 >> airFriction
  4. ↑ CfgAmmo >> vn_9x19 >> typicalSpeed
  5. ↑ CfgAmmo >> vn_9x19 >> caliber
  6. ↑ CfgAmmo >> vn_9x19 >> deflecting

CfgMagazines

  1. ↑ CfgMagazines >> vn_mp40_mag >> count
  2. ↑ CfgMagazines >> vn_mp40_mag >> initSpeed
  3. ↑ CfgMagazines >> vn_mp40_mag >> mass
  4. ↑ CfgMagazines >> vn_mp40_mag >> ammo >> "vn_9x19"
  5. ↑ CfgMagazines >> vn_mp40_mag >> tracersEvery
  6. ↑ CfgMagazines >> vn_mp40_mag >> lastRoundsTracer
  7. ↑ CfgMagazines >> vn_mp40_t_mag >> tracersEvery
  8. ↑ CfgMagazines >> vn_mp40_t_mag >> lastRoundsTracer

CfgWeapons

  1. ↑ CfgWeapons >> vn_mp40 >> FullAuto >> dispersion
  2. ↑ CfgWeapons >> vn_mp40 >> WeaponSlotsInfo >> mass
  3. ↑ CfgWeapons >> vn_mp40 >> recoil
  4. ↑ CfgWeapons >> vn_mp40 >> recoilProne
  5. ↑ CfgWeapons >> vn_mp40 >> inertia
  6. ↑ CfgWeapons >> vn_mp40 >> dexterity
  7. ↑ CfgWeapons >> vn_mp40 >> FullAuto >> reloadTime
  8. ↑ 8.0 8.1 CfgWeapons >> vn_mp40 >> initSpeed
  9. ↑ 9.0 9.1 CfgWeapons >> vn_mp40 >> discreteDistance[] >> {100,200}
  10. ↑ CfgWeapons >> vn_mp40 >> discreteDistanceInitIndex >> "0"
  11. ↑ CfgWeapons >> vn_mp40 >> magazines[] >> {"vn_mp40_mag","vn_mp40_t_mag"}

Scripts

  1. ↑ \vn\functions_f_vietnam\functions\melee\fn_melee_drainstamina.sqf

Formulae

  1. ↑ 60 / reloadTime = 60 / 0.105
  2. ↑ (mass * 0.04) * dexterity = (45 * 0.04) * 1.7
  3. ↑ Magazine's initSpeed * Ammo's caliber * 15 / 1000 = 370 * 0.8 * 15 / 1000
  4. ↑ Weapon's initSpeed * Ammo's caliber * 15 / 1000 = 425 * 0.8 * 15 / 1000

Notes[]

  1. ↑ This muzzle velocity value (370 m/s) only applies to the magazine itself. The MP40's weapon classname has its own muzzle velocity value defined (425 m/s) that always takes precedence over the magazine's initSpeed value.
  2. ↑ This is the MP40's actual muzzle velocity. The weapon class initSpeed value (425 m/s) takes precedence over the magazine initSpeed value (370 m/s).
  3. ↑ Damage will be reduced if the projectile's velocity drops below this value.
  4. ↑ This is the actual penetration depth of the MP40's 9 mm ammunition. The weapon class initSpeed value (425 m/s) takes precedence over the magazine initSpeed value (370 m/s), affecting its penetration formula as a result.

References[]

  1. ↑ Graham, R et al. 2021, S.O.G. Prairie Fire - Changelog, Bohemia Interactive Forums, viewed 16 December 2023, <https://forums.bohemia.net/forums/topic/234698-sog-prairie-fire-changelog/?do=findComment&comment=3447057>.
  2. ↑ Graham, R et al. 2022, S.O.G. Prairie Fire - Changelog, Bohemia Interactive Forums, viewed 16 December 2023, <https://forums.bohemia.net/forums/topic/234698-sog-prairie-fire-changelog/?tab=comments#comment-3463284>.

External links[]

See also[]

Weapons of comparable role and configuration[]

  • M1A1 Tommy Gun (.45-chambered BLUFOR/INDFOR counterpart)
Weapons of S.O.G. Prairie Fire
Handguns .38 Revolver • HD .22 • HP 9 mm • M712 7.62 mm • M1895 7.62 mm • M1911 .45 • Mk1 UDG 2.54 mm • Mk22 Mod 0 9 mm • Model 10 .38 • P38 9 mm • PM 9 mm • PPK 9 mm • TT-33 7.62 mm • Type 64 Pistol 7.65 mm • Welrod 7.65 mm
Submachine guns F1 SMG 9 mm • L2A3 9 mm (L34A1, L34A1 XM148) • M/45 9 mm • M1A1 Tommy Gun .45 (Shorty, M1928, M1928A1) • M3A1 Grease Gun .45 • MAT-49 9 mm (VC) • MC-10 9 mm • MP40 9 mm • MPU 9 mm • PPS-43 7.62 mm (PPS-52) • PPSh-41 7.62 mm (K-50M) • Sten Mk.II 9 mm • Type 64 SMG 7.65 mm • VZ.61 7.65 mm
Shotguns ISh-54 (Sawn-off, Sidearm) • M1897
Carbines GAU-5A/A 5.56 mm • M1 Carbine 7.62 mm (M1 Rifle Grenade, M2, M2 Rifle Grenade, M3) • SKS 7.62 mm (GL) • XM177E1 5.56 mm (E2, E2 Foregrip, E2 Stock, E2 Short, E2 XM148)
Rifles/Assault rifles AK 7.62 mm • K98K 7.92 mm • KBKG 7.62 mm (Rifle Grenade) • L1A1 7.62 mm (XM148, Rifle Grenade, SAS) • M1 Garand 7.62 mm (Rifle Grenade) • M16A1 5.56 mm (M203, XM148, E1, E1 XM148, USAF) • M1903 7.62 mm (Rifle Grenade) • M36 7.5 mm • M38 7.62 mm • M49/56 7.5 mm (Rifle Grenade) • M63A 5.56 mm • Type 56 7.62 mm
Squad automatic weapons DP-27 7.62 mm • L2A1 LMG 7.62 mm • L4 LMG 7.62 mm • M1918A2 7.62 mm • M63A LMG 5.56 mm (Commando) • RPD 7.62 mm (El Cid, Shorty)
Machineguns M60 7.62 mm (Shorty) • MG42 7.92 mm • PK 7.62 mm
Designated marksman rifles M14 7.62 mm (A1, Shorty) • M1891 7.62 mm
Sniper rifles M40 7.62 mm • M91/30 7.62 mm • SVD 7.62 mm • VZ54 7.62 mm • XM21 7.62 mm
Grenade launchers M79 (Sawn-off)
Launchers 9K32 Strela-2 (M) • B40 • B41 • M127 Flare Launcher • M20A1B1 • M72 LAW
Static 9P111 Malyutka • BGM-71 TOW • D44 • DP-27 • DShKM • H12 Rocket Launcher • L/70 Mk2 • M2 Mortar • M2HB • M1910 • M29 Mortar • M40A1 Recoilless Rifle • M45 Quadmount • M60 • M101 Howitzer • M1919A4 (M1919A6) • MG42 • Mk18 Mod 0 • PK • RPD • SGM • Spiderhole • Type 53 Mortar • Type 56 Recoilless Rifle • Type 63 Mortar • ZGU-1 • ZPU-4
(Parenthesis) denote variants.
Viet Cong - Armoury (S.O.G. Prairie Fire)
Handguns M1895 7.62 mm • M712 7.62 mm • P38 9 mm • PPK 9 mm
Submachine guns M3A1 Grease Gun .45 • MAT-49 7.62 mm • MP40 9 mm • PPS-43 7.62 mm (PPS-52) • PPSh-41 7.62 mm (K-50M)
Shotguns ISh-54 (Sawn-off, Sidearm)
Carbines M1 Carbine 7.62 mm (Rifle Grenade) • SKS 7.62 mm (GL)
Rifles/Assault rifles K98K 7.92 mm • M36 7.5 mm • M38 7.62 mm • M49/56 7.5 mm (Rifle Grenade) • Type 56 7.62 mm
Squad automatic weapons DP-27 7.62 mm • RPD 7.62 mm
Designated marksman rifles M1891 7.62 mm
Sniper rifles M91/30 7.62 mm
Launchers 9K32 Strela-2 • B40 • B41
Static D44 • DP-27 • DShKM • H12 Rocket Launcher • MG42 • PK • RPD • SGM • Spiderhole • Type 53 Mortar • Type 56 Recoilless Rifle • Type 63 Mortar
(Parenthesis) denote variants.
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