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Stomper / Saif
Arma3-render-stomperrcwssand.png
Faction Icon-side-blufor.png NATO
Icon-side-redfor.png CSAT
Icon-side-greenfor.png AAF
Icon-side-greenfor.png LDF
Icon-side-neutral.png IDAP
Type UGV / UGCV
Seats 1 seat:
  • 1× Passenger
Item capacity 1000 mass
Top speed 46 km/h
Fuel capacity 14 fuel units
Weight 4266.5 kg (all variants)
Slingloadable Yes (all variants)
Primary armament Armed only:
  • 1× RCWS HMG 12.7 mm
  • 1× RCWS GMG 40 mm
Secondary armament None
Variants UGV Stomper, UGV Stomper RCWS, UGV Saif, UGV Saif RCWS, UGV (IDAP)
Games
Arma3.icon.png

LawsofWar dlc logo.png

The UGV Stomper / UGV Saif is an Unmanned Ground Vehicle/Unmanned Ground Combat Vehicle used by several BLUFOR, REDFOR and INDFOR factions in ArmA 3.

A civilian variant also exists and is simply known as the UGV, where it is used in limited numbers by IDAP aid workers. It was added with the release of the Laws of War DLC.

Overview

  • Roles:
    • Munitions transport
    • Fire support
    • Cargo transport
« The Stomper is a remote controlled unmanned ground combat vehicle designed for reconnaissance, surveillance and support. It's able to operate autonomously in large areas, while sending real-time data to the control center. Each wheel is powered by a separate electric engine, whose batteries are linked together to a diesel engine power unit. An armed variant of the Stomper is fitted with a RCWS turret carrying 40 mm cannon and 12.7 mm HMG. An OPFOR variant, designated Saif and Saif RCWS, is a cheaper and less reliable copy from the Asian region.
Field Manual
»

Design

The Stomper is a 6x6 unmanned ground vehicle that can autonomously move and engage enemy targets on its own accord without requiring manual input from the operator.

Features
It is available in two variants; an unarmed version that has no weapons mounted on it that is meant to be used for transporting supplies and cargo, and an armed version that is fitted with an RCWS turret armed with a dual-mount 12.7 mm heavy machine gun and 40 mm automatic grenade launcher.

A small wheeled drone, the Stomper can serve both as force multiplier when deployed alongside other ground units or as a mobile resupply vehicle.

Unarmed Stompers resupplying a NATO squad out in the field.

Drawbacks
Extremely fragile by most standards, a tiny amount of medium/large calibre arms fire or explosives is sufficient to immobilise (if not outright destroy) the Stomper if the operator carelessly sends it against threats it cannot handle.

Therefore it is best used as a mobile sentry drone to guard areas, as a support asset to escort motorised infantry squads, or be manually controlled to utilise the Stomper in a reconnaissance role, scouting ahead for friendly forces as opposed to being apart of frontal assaults.

Crew Capacity
All variants have a single seat located at the front of the chassis that can transport up to one passenger (usually the drone operator themselves).

Variants

Arma3-render-stompersand.png
Baseline variant. It is more or less designed to be a munitions/supply carrier, being completely unarmed and otherwise lacking any other use in combat.

Used by NATO forces, the AAF and the LDF.

Arma3-render-stomperhex.png
Identical to the UGV Stomper variant but exclusive to CSAT forces.

Arma3-render-stomperrcwssand.png
Armed version of the baseline Stomper.

Unlike unarmed Stompers, the RCWS variant is fitted with an RCWS turret that is armed with a dual-mount 12.7 mm heavy machine gun and 40 mm automatic grenade launcher.

The externally mounted RCWS comes pre-loaded with a single 200-round belt and 96 grenades fitted with high-explosive (HE) warheads. It has no spare belts to reload from for either weapon.

Arma3-render-stomperrcwshex.png
Statistically and functionally identical to the UGV Stomper RCWS variant, but exclusive to CSAT forces.

Arma3-render-stomperidap.png
Visually and functionally identical to the unarmed Stomper/Saif variant.

This specific model is exclusively utilised by the IDAP, and does not accept any other camouflage options.

Camouflage

All faction variants have access to the same camouflage options:

  • Olive: Standard pattern-less olive drab green paint scheme used by all NATO ground vehicles and certain aircraft. This can be universally employed in all types of terrain, but is more suited to arid and forested environments.
  • Hex: Arid Hexacam camouflage pattern. Useful for forested, grass plains, and desert environments.
  • Green Hex: Tropical Hexacam pattern camouflage. This is used in heavily forested and tropic environments.
  • Digital Green: Digitised semi-fratal camouflage pattern used by all AAF vehicles and aircraft. Suited to forested and grassy environments, but otherwise useless in arid and desert terrain.
  • IDAP*: Flat white paint scheme with additional livery in the form of IDAP logos and signage.
  • Geometric: Fractal woodland camouflage pattern. Used by LDF-operated Stomper variants.

(*) This paint scheme can only be applied to the unarmed variant of the Stomper/Saif and IDAP's UGV.

Protection

All variants of the drone have base armour values of 30 and use Composite Armour plating. It is not possible to mount Slat cages onto the drone, nor can Explosive Reactive Armour (ERA) blocks/panels be installed.

The following highlighted positions serve as weak points on the drones:

LEGEND
Green = Hull
Orange = Engine
Violet = Fuel tank

Note that weak point positions remain identical on all drone variants regardless of whether they retain armament.

Hull

The hull can only resist a meagre 21 points of damage. Will result in a catastrophic kill if its integrity is depleted.

Munition type Damage reduction (%) Velocity reduction (%)
Armour Piercing None 10
High-Explosive 80* 50
High-Explosive Anti-Tank 80* 80
Tandem High-Explosive Anti-Tank 80* 10

(*) Reductions only apply to the explosive component of the munition i.e. Tandem HEAT explosive charge

If the hull has been compromised, no reductions will be applied to the velocity/raw damage of incoming projectiles.

Engine

The engine can withstand up to 60 points of damage before it fails. At least 50% of incoming damage will be shared with the drone's "health" pool. It takes 80% less damage from high-explosive (HE) type munitions.

Destroying the engine will not cause a catastrophic kill unless the drone's overall "health" is at less than half of its integrity.

If damaged: Reduces power output, acceleration is decreased and it may become impossible to climb uphill.
If destroyed: Instantly immobilises the drone.

Fuel tank

The fuel tank can only take 30 points of damage before it ruptures. 30% of incoming damage will always be shared with the drone's main "health" pool. It takes 40% less damage from HE-type munitions.

A destroyed fuel tank will not cause a catastrophic kill unless the drone is critically damaged.

If damaged: Gradually leak up to 30% of fuel over time.
If destroyed: Rapidly leaks all remaining fuel in the tank over several seconds.

Wheels

Each of the six wheels can only survive 15 points of damage. They are susceptible to small arms fire and take 400% extra damage from HE-type munitions. At least 30% of this damage will be shared with the drone's main "health" pool.

Destroying all of the drone's wheels will be needed to immobilise it. Depending on which and how many are remaining, it is entirely possible for the drone to continue driving even with five of its tyres missing (though making simple manoeuvres will be almost impossible).

RCWS

The RCWS turret on armed variants can resist up to 250 points worth of damage. No amount of damage incurred is shared with the drone's "health" pool.

Munition type Damage reduction (%) Velocity reduction (%)
Armour Piercing None 10
High-Explosive 60* 50
High-Explosive Anti-Tank 60* 80
Tandem High-Explosive Anti-Tank 60* 10

(*) Reductions only apply to the explosive component of the munition i.e. Tandem HEAT explosive charge

If the RCWS turret's armour plating has been compromised, no reductions will be applied to the velocity/raw damage of incoming projectiles.

Armament

The passenger riding in the front seat of the Stomper can utilise FFV to fire their own weapons.

The "gunner" AI position handles the turret-mounted armament. For optics, they have access to a variable zoom camera that can only toggle between regular day or black-hot/white-hot thermal vision modes:

RCWS HMG 12.7 mm

Arma3-vehicleweapons-ugvstomperrcws-rcwshmg127mm.png

NOTE: Only available on the UGV Stomper RCWS and UGV Saif RCWS variants.

Base damage value Aerodynamic friction Initial velocity (m/s) Penetration depth (mm)
30 -0.00086 910 35.49

Intended for infantry, unarmoured/lightly-armoured vehicles and low-flying helicopters. It has an effective firing range of 800 metres up to a maximum of 1,500 metres.

The RCWS HMG can attain a fire rate of up to 600 RPM and requires 20 seconds to reload a fresh box. Accuracy-wise, it has a fixed dispersion of 0.0012 rad regardless of distance.

The fire control system is only able to automatically zero on stationary targets and requires 1 second to finish adjusting. Manual zeroing is also possible, though only in increments of 100 m up to a maximum of 1500 m.

RCWS GMG 40 mm

Arma3-vehicleweapons-ugvstomperrcws-rcwsgmg40mm.png

NOTE: Only available on the UGV Stomper RCWS and UGV Saif RCWS variants.

Damage type Base damage value Aerodynamic friction Initial velocity (m/s)
High-Explosive Anti-Tank 100 -0.001 241

Its HE grenades are intended for use against groups of infantry, unarmoured/lightly-armoured vehicles and medium-armoured vehicles with exposed turrets.

It has an effective firing range of 1,200 metres and has a fire rate of ~ 349 RPM. It requires 20 seconds to reload a second belt and for dispersion, the GMG is always set to a fixed value of 0.005 rad.

The FCS can only zero onto stationary targets and requires 1 second to finish adjusting. Like the RCWS HMG, manual zeroing is also possible up to a maximum of 1500 m.

FFV

Main article: Firing from vehicles (mechanic)#UGV Stomper

Trivia

  • The Stomper is based on the real-world "Crusher" UGCV designed by researchers at the Carnegie Mellon University's National Robotics Engineering Center for DARPA.
  • Despite the Field Manual mentioning that the CSAT Saif is meant to be less effective compared to its NATO counterpart, there is no difference in terms of performance or armament between the two aside from using different camouflage schemes.
  • Following the release of the Laws of War DLC, it was revealed that the UGV Stomper is manufactured by an Armaverse company named Vantland Industries.
  • The loadout of the armed variant was greatly reduced following the release of the Tanks DLC. Prior to the DLC's platform update, the Stomper RCWS/Saif RCWS retained access to two 500-round belts for the HMG and 200-round "magazine" for the GMG instead.
  • Both the Stomper and Saif are currently the only ground-based drones of their kind that can be used in ArmA 3. It is also the first UGV in the entire series.

Gallery

External links

See also

Vehicles of ArmA 3
Wheeled AFV-4 GorgonAMV-7 MarshallHatchbackHEMTTHunterIfritKartMB 4WDMSE-3 MaridOffroadProwlerQilinRhino MGS (UP) • StriderSUVTempestTractorTruckQuadbikeUGV StomperVanZamak (MRL)
Tracked 2S9 SochorAWC NyxBTR-K KamyshCRV-6e BobcatED-1D Mini UGV (ED-1E) • IFV-6a CheetahIFV-6c PantherFV-720 MoraM2A1 Slammer (A4 UP) • M4 ScorcherM5 SandstormMBT-52 KumaT-100 VarsukT-140 Angara (T-140K) • ZSU-39 Tigris
Rotor-wing AH-9 PawneeAH-99 BlackfootAR-2 DarterCH-49 MohawkCH-67 HuronDemining DroneMH-9 Hummingbird (M900) • Mi-48 KajmanMi-290 TaruMQ-12 FalconPO-30 OrcaUH-80 Ghost HawkUtility DroneWY-55 Hellcat
Fixed-wing A-143 BuzzardA-149 GryphonA-164 WipeoutCaesar BTTF/A-181 Black Wasp IIKH-3A FenghuangMQ-4A GreyhawkTo-199 NeophronTo-201 ShikraUCAV SentinelV-44X BlackfishY-32 Xi'an
Aquatic Assault BoatMotorboatRHIBSpeedboatSDVWater Scooter
(Parenthesis) denote variants.
Karts DLC | Helicopters DLC | Apex DLC | Jets DLC | Laws of War DLC | Tanks DLC | Contact DLC
Arma3-factionicon-nato.png NATO - Vehicles (ArmA 3)
Wheeled AMV-7 MarshallHEMTTHunterProwlerQuadbikeRhino MGS (UP) • UGV Stomper
Tracked CRV-6e BobcatED-1D Pelter (ED-1E Roller) • IFV-6a CheetahIFV-6c PantherM2A1 Slammer (A4 UP) • M4 ScorcherM5 Sandstorm
Rotor-wing AH-9 PawneeAH-99 BlackfootAL-6 PelicanAR-2 DarterCH-67 HuronMH-9 HummingbirdMQ-12 FalconUH-80 Ghost Hawk
Fixed-wing A-164 WipeoutF/A-181 Black Wasp IIMQ-4A GreyhawkUCAV SentinelV-44X Blackfish
Aquatic Assault Boat (Rescue) • Speedboat MinigunSDV
(Parenthesis) denote variants.
Helicopters DLC | Apex DLC | Jets DLC | Laws of War DLC | Tanks DLC | Contact DLC
Arma3-factionicon-livoniandefenseforce.png LDF - Vehicles (ArmA 3)
Wheeled OffroadQuadbikeUGV StomperVanZamak (MRL)
Tracked ED-1D Pelter (ED-1E Roller) • FV-720 Odyniec
Rotor-wing AL-6 PelicanAR-2 DarterWY-55 Czapla
Fixed-wing A-149 Gryphon
(Parenthesis) denote variants.
Jets DLC | Laws of War DLC | Tanks DLC | Contact DLC
Arma3-factionicon-csat.png CSAT - Vehicles (ArmA 3)
Wheeled IfritMSE-3 MaridQilinQuadbikeTempestUGV SaifZamak
Tracked 2S9 SochorAkinaka ED-1D (Sayyah ED-1E) • BTR-K KamyshT-100 VarsukT-140 Angara (T-140K) • ZSU-39 Tigris
Rotor-wing Jinaah AL-6Mi-48 KajmanMi-290 TaruPO-30 OrcaTayran AR-2
Fixed-wing K40 Abalil-3KH-3A FenghuangTo-199 NeophronTo-201 ShikraY-32 Xi'an
Aquatic Assault Boat (Rescue) • Speedboat HMGSDV
Parenthesis denote variants.
Helicopters DLC | Apex DLC | Jets DLC | Laws of War DLC | Tanks DLC | Contact DLC
Arma3-factionicon-aaf.png AAF - Vehicles (ArmA 3)
Wheeled AFV-4 GorgonQuadbikeStriderUGV StomperZamak (MRL)
Tracked AWC NyxED-1D Pelter (ED-1E Roller) • FV-720 MoraMBT-52 Kuma
Rotor-wing AR-2 DarterAL-6 PelicanCH-49 MohawkWY-55 Hellcat
Fixed-wing A-143 BuzzardA-149 GryphonK40 Abalil-3
Aquatic Assault Boat (Rescue) • Speedboat MinigunSDV
Parenthesis denote variants.
Jets DLC | Laws of War DLC | Tanks DLC | Contact DLC
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