This Star Wars papercraft is the Katarn-Class Commando Armor that was used by clone commandos during the Clone Wars, the paper model created by PepMaster. There are not Backpack and Chest in the pack, but you can get them here: Katarn-Class Commando Armor Backpack Papercraft and Katarn-Class Commando Armor Chest Papercraft.
The Katarn-Class Commando Armor was named after the predatory animal from Kashyyyk. It weighed 20 kilograms and could cost up to 100,000 credits on the black market.
This armor was more expensive and provided better protection than standard clone armor, due to the special composition and novel chemical properties of its armor plates, along with the inclusion of deflector shields. It was also designed for easy bacta injection via handheld dispensers. Katarn Armor was often highly customized by the clone commandos who wore it.
- Helmet - The helmet of the Katarn-class armor had a HUD or heads up display that consistently displayed tactical data such as the location and distance to your target, the health of the wearer and the strength of the suit's shielding. The Helmet could system link to others through the use of an internal communications antennae allowing each member of a squad to keep track of their comrade's health and location. Specialized internal sensors could detect the make, model, and relative accuracy of every weapon that a commando used, and could adjust the format of the targeting reticule for differing weapons. The Helmet had a built-in filtration system which could extract oxygen from toxic environments. The visor was designed to incorporate electrobinocular and night-vision modes.
- Body - The body of the armor boasted reinforced Duraplast plating for defense against blaster fire and other anti-infantry weapons. Its design included resistance to extreme heat and cold. The suit could be fully sealed allowing a commando to survive in vacuum for up to 20 minutes. The knuckle plate of the armor featured a retractable vibroblade used for close quarter combat and covert encounters.
- Backpack - The Backpack featured specialized ammunition cartridges that held various types of ammo, and was reconfigurable for many different missions. An extra oxygen tank for aquatic and space-borne environments, a large bacta dispenser for augmented healing, or even an external communications array for long distance communications. It is interesting to note that the backpack had a display on it that showed the last two digits of the respective commando's ID number. [Source: wikia]
You can download the papercraft model template here: Star Wars - Katarn-Class Commando Armor Free Papercraft Download