Designed as a general purpose vehicle, the HMR-V has been made under contract by many different companies. Due to the modular construction, the HMR-V can be used to carry troops, cargo, casualties, a portable communications or command center, or weapons. It is a simple, open top, flat bed vehicle, with a re-enforced frame. This is not to protect it from enemy fire, but rather from rough driving over rougher terrain.
Many repulsorlift heavy weapons squads are made up of a HMR-V carrying a heavy repeating blaster on a bolted down tripod. Other weapons that are used for "Gun Hums" are light repeating blasters (on a post mount), PLEX teams (carrying multiple ready launchers, or mounting one to the vehicle), grenade mortars, proton torpedos, and many others. One of the more interesting weapons configurations is a Merr-Sonn SX-451 heavy sniper rifle mounted on a heavy post tall enough to support the rifle if the shooter is sitting in the cargo bed. This particularly stable rig is used by engineers to destroy mines, unexploded bombs and missles, and to target strategic targets during combat.
With the bed clear, it can be used to haul cargo weighing up to two tons, which includes everything from TIE engines to field rations. The side boards have folding troop seats, allowing six troopers to ride in the back if only a light cargo is carried. A clip on cover is available, the addition of which allows the HMR-V to be converted to a field aid station, a six stretcher (with one attendant) ambulance, a mobile sensor station, a communications post or a mobile headquarters. It is with these additions in mind that the HMR-V has a generator almost twice as powerful as it needs.
To further the utility of the HMR-V, there is a repulsor-trailer available as well. It uses a magnetic clamp to secure to the vehicle, and you lose a great deal of speed and maneuverability, but it allows the vehicle to carry up to an additional five tons of cargo.
Other, much less common versions exist, including the Heavy High Mobility Repulsorlift Vehicle, which lengthens the chassis, covers the cargo bay, adds a light layer of armour and a permanent weapons mount, and the Extended High Mobility Repulsorlift Vehicle, which has an extended cargo bay for long and heavy loads.
In keeping with it's mobility designation, it is designed to be transported in a cargo-configuration Lambda shuttle, or may even be carried slung by a heavy cargo airspeeder.