U.S. Army Receives Hunter WOLF Robot Vehicle With Mountain Division for Frontline Combat Support.

HDT Robotics has delivered Hunter WOLF unmanned ground vehicles to the U.S. Army’s 3rd Brigade, 10th Mountain Division at Fort Polk, Louisiana, giving light infantry units a robotic platform designed to reduce soldier exposure during resupply, casualty evacuation, reconnaissance, and local security missions. The company announced on May 11, 2026, that the deployment supports Ground Optionally Autonomous Transport training, highlighting the Army’s push to integrate autonomous systems directly into frontline maneuver operations rather than treating them as rear-area support tools.

The 6x6 Hunter WOLF is being tested as a multi-role battlefield asset capable of carrying supplies, evacuating wounded troops, extending communications, and supporting armed overwatch missions without adding manpower to exposed movement tasks. The training event also evaluates autonomy kits and modular payload integration, reflecting a broader shift toward robotic systems that can increase infantry mobility, survivability, and operational endurance in contested environments.

Related topic: U.S. Army Tests Armed Hunter Wolf UGV To Shape Future Frontline Logistics and Combat Security Roles.

HDT Robotics’ Hunter WOLF 6x6 unmanned ground vehicle, delivered to the U.S. Army’s 3rd Brigade, 10th Mountain Division at Fort Polk, combines load carriage, casualty evacuation, power generation, ISR support, and optional remote weapon integration for light infantry operations (Picture source: HDT Global).

The Hunter WOLF, for Wheeled Offload Logistics Follower, is a hybrid diesel/JP-8 electric 6x6 unmanned ground vehicle built around a 2,800 lb payload, a 3,600 lb curb weight, and a deck measuring 77 by 52 inches. HDT’s technical data lists a 200-mile unrefueled range with full payload, an 8-mile silent electric run, 10 mph speed, 24-inch water fording, 60 percent climb and descent, and 40 percent side-slope operation. These figures place the vehicle above the original S-MET Increment I load requirement, which the Army described as a 1,000 lb payload system, and closer to the Increment II goal of doubling carried load while increasing exportable power and reducing acoustic signature.

The armament issue is central because the Hunter WOLF is not limited to moving cargo. HDT states that remote weapon stations up to a 30 mm autocannon have already been integrated on the vehicle and live-fire tested, while the baseline design can accept armor and several weapon installations, including an M2 heavy machine gun fit. In the armed configuration previously observed at Fort Polk, the vehicle carried a remotely operated .50 caliber machine gun and an EchoShield radar, a pairing that changes the tactical use case from unarmed transport to armed route security, perimeter overwatch, and sensor-supported force protection.

The most practical near-term weapon is the M2A1 .50 caliber machine gun because it is already in the U.S. Army inventory, has established ammunition supply chains, and gives an unmanned ground vehicle a known effect against personnel, light armored vehicles, light fortifications, small boats, and low or slow-flying aerial targets. The official Army description lists the M2/M2A1 as a belt-fed, recoil-operated, air-cooled weapon with single-shot and automatic fire, a 12.7 mm caliber, an 84 lb receiver-and-barrel weight for the M2 and 86 lb for the M2A1, a 1,830-meter range, and a 450–600 rpm rate of fire. The M2A1’s quick-change barrel, fixed headspace and timing, and flash hider reducing muzzle flash by 95 percent are especially relevant on a robotic ground vehicle, where reduced operator exposure and simpler maintenance matter more than high sustained fire volume.

A remote weapon station on a Hunter WOLF would normally combine the gun, ammunition box, stabilized mount, electro-optical/infrared sight, laser rangefinder, fire-control electronics, and operator display. The vehicle’s hybrid architecture supports this role because HDT lists 6 kW at 28 VDC continuous, 15 kW at 100 VDC continuous, 800 W at 120 VAC continuous, and 100 kW at 100 VDC peak for several minutes. That electrical margin can support sensors, radios, electronic warfare payloads, drone charging, medical equipment, or a remote weapon station without using a separate generator. The tactical limitation is also clear: ammunition weight, reload exposure, gun elevation limits, target identification, communications reliability, and rules of engagement will determine whether an armed Hunter WOLF is useful in a real fight or merely an escort vehicle with a gun.

A 30 mm autocannon-class installation would provide a different level of effect, but it should be understood as a specialized configuration rather than the default fit for light infantry. A cannon-caliber weapon could engage harder cover, light vehicles, firing points, and drone launch teams at greater stand-off than a .50 caliber machine gun, but the costs are recoil management, reduced payload for supplies, heavier ammunition, more complex stabilization, and higher sustainment demand. For a vehicle only 100 inches long, 55 inches wide, and 41 inches high, adding a 30 mm weapon is less about replacing an infantry fighting vehicle and more about giving dismounted units a remotely operated fire-support node that can be risked ahead of soldiers in selected scenarios.

The Army requirement behind this is measurable. In September 2024, the Army awarded two Other Transaction Authority Engineering and Manufacturing Design contracts, totaling $22 million, to American Rheinmetall Vehicles and HDT Expeditionary Systems for eight S-MET Increment II prototypes each. The Army stated that successful developmental testing could lead to a production contract in late Fiscal Year 2027, with an acquisition objective of up to 2,195 systems. HDT separately reported that its Hunter WOLF selection under S-MET Increment II was valued at $11.55 million for government test and evaluation.

A rifle company moving on foot consumes ammunition, water, batteries, radios, anti-armor rounds, counter-drone equipment, medical loads, and breaching tools faster than soldiers can comfortably carry them across broken terrain. When the unit disperses to avoid artillery and drones, trucks cannot always reach the formation, helicopters are not always available, and every resupply movement creates a detection opportunity. A Hunter WOLF can carry more than a ton, generate power, move silently for short distances, and carry litters; HDT states the casualty evacuation kit can hold two litters on deck and side-carry two more while powering prolonged field care equipment.

For Army commanders, the main question is not whether unmanned ground vehicles are useful in a demonstration, but whether they reduce risk and manpower demand under field conditions. The Hunter WOLF’s strongest case is the combination of payload, power export, transportability, and armed modularity in a vehicle that can be sling-loaded by a UH-60, carried internally by a V-22, and loaded in groups of three inside a CH-47 or eight inside a C-130. That means it can accompany airborne, air assault, and light infantry formations without depending on heavy vehicle transport. The comparison with the Rheinmetall-Textron competing solution shows that the service is assessing different industrial approaches before committing to a fleet decision, not simply buying a single company’s concept.

The Fort Polk training should therefore be read as an operational experiment with procurement implications. If soldiers can employ the Hunter WOLF without slowing movement, overloading radio networks, or adding unacceptable maintenance work, the vehicle offers a concrete answer to three Army problems: excessive soldier load, battery dependence, and exposed resupply. If the armed configuration proves controllable, survivable, and lawful within tactical decision-making, it could also give light infantry a remote means of securing routes, casualty collection points, and temporary positions without committing additional riflemen to static security tasks.