This paper model is a GLA Scud Launcher, based on the real-time strategy video game franchise Command & Conquer, the papercraft was created by fico86. The MAZ-543 (MAZ-543/MAZ-7310 "Uragan") Scud Transporter Erector Launcher is an old, Soviet ballistic missile launching vehicle acquired by the GLA.
It is obtained from an Arms Dealer and requires a Palace on the battlefield to produce. Scud launchers require spending a General's promotion point to acquire...more information here.
You can download the papercraft model here: Command & Conquer - GLA Scud Launcher Free Paper Model Download