This papercraft is a simple Night Scythe, the Necrons’ favoured tool of invasion, a variant of the Doom Scythe that replaces some of that fighter’s heaviest weaponry in favour of a troop transport capacity, from the Warhammer 40K series, the paper model is created by Jim Bowen.
This is not to say that a Night Scythe is in any way defenceless -- quite the opposite. Like its counterpart, it is capable of combat operations in both the void and within a planet's atmosphere and it serves the Necron forces in the interceptor, starship assault and fighter-bomber roles. With its turret-mounted Tesla Destructors and the nerve-shredding shriek of its engines, the Night Scythe is a formidable fighter craft in its own right. The Necron infantry units that Night Scythes most commonly carry into battle include Necron Warriors, Immortals, Deathmarks and Lychguard. [Source: wikia]
You can download this papercraft template here: Warhammer 40K - Night Scythe Free Papercraft Download