This paper model is a Fire Lords Mule Whirlwind artillery support vehicle, based on the game Warhammer 40k, the papercraft was shared by Hernaldo Rios. The Whirlwind is an Imperial artillery support vehicle based upon the Standard Template Construct (STC) Rhino Armoured Personnel Carrier (APC) chassis that is now primarily used by the Space Marine Chapters of the Adeptus Astartes.
The Whirlwind plays the role of artillery support, providing support fire onto enemy formations from the relative safety of geographical cover, such as behind hills, forests or other line-of-sight obstructions. It is intended to be used primarily for softening up a heavily-fortified static position or other well-defended target prior to the start of a major Space Marine assault.
The Whirlwind is available exclusively to Space Marine forces and is typically deployed in squadrons of three units, though in smaller actions individual vehicles may be observed operating just as effectively.
The Whirlwind design is not used by the Chaos Space Marine Traitor Legions, as the STC database from which its design was recovered was not available to the Imperium of Man until after the end of the Horus Heresy. The Whirlwind is armed with a Whirlwind Multiple Missile Launcher that is placed on a rotating turret on the vehicle's dorsal surface that is capable of firing a number of different types of missile ordinance.
Unlike the Imperial Guard, Space Marine Chapters do not rely on heavy artillery bombardments and rarely deploy artillery unless it is truly needed. Many times when Whirlwinds are deployed to the battlefield they will only ever deliver a brief yet highly effective barrage against enemy targets, after which the Space Marines will engage any enemy forces that remain. When compared to the artillery tanks of the Imperial Guard, such as the Basilisk and the Medusa, the Whirlwind's range is much shorter, but it can unleash its weapon's payload with a much faster reaction time.
The Whirlwind is one of only a handful of Space Marine vehicles that are capable of firing at their targets indirectly. This capability, combined with the vehicle's great mobility allow it to fire upon an enemy and then quickly relocate to avoid enemy return fire.
Typically, squadrons of Whirlwinds are used to provide artillery fire in support of Space Marine tactical deployments and advances. Though a Whirlwind's missiles lack the capability to penetrate heavy vehicle armour, they can be highly effective against large formations of lightly-armoured infantry or light vehicles. The flexibility of the indirect fire of a Whirlwind should also not be overlooked. Given a pragmatic initial deployment, it can provide fire support to friendly units almost anywhere on the battlefield.The Whirlwind can fire barrage after barrage of missiles into enemy formations or static defences, softening them up before the front-line units arrive and then the Whirlwind can provide tactical support as the Astartes forces require it.
The Whirlwind is equipped with a dorsal-mounted Whirlwind Multiple Missile Launcher that is placed on a rotating turret on the vehicle's top that is capable of firing a number of different types of missile ordinance. The most common variant of the Whirlwind in use by the Astartes during the 41st Millennium is the Helios Pattern.
The Whirlwind Helios originated on the Forge World of Helios, and the Whirlwind Multiple Missile Launcher on this pattern is capable of carrying 60 missiles, while the Hyperios anti-aircraft variant is capable of carrying 40 surface-to-air missiles to fire upon enemy aircraft. The Whirlwind, like all other Rhino variants, can also be outfitted with dozer blades, extra armour plating, a Hunter-Killer Missile Launcher, improved communications equipment, a Pintle-mounted Storm Bolter, a searchlight, and smoke launchers.
You can download this paper craft model here: Warhammer 40K - Fire Lords Mule Whirlwind Free Paper Model Download [DropBox] [Box] [Gavitex]