This gundam paper model is the SCV-70 (LMSD-71, MSC-02) White Base, a Pegasus-class mobile suit carrier deployed by the Earth Federation, created by a chinese designer [name?], and share by lamtw3000.
Through the first part of One Year War, the White Base's registration name was unknown to the Principality of Zeon forces, so they referred to her by the codename 'Trojan Horse', presumably because of her unusual shape. After the war, she was re-designated MSC-02 even though the ship herself was destroyed at A Baoa Qu.
As a member of the Pegasus-class assault carriers developed as part of Operation V, the White Base's primary function was to carry and support mobile suits. For that purpose the White Base had two hangars, each with a launch catapult, that could each load three mobile suits for a total of six. Additionally the White Base could carry a number of support craft such as Core Fighters or Core Boosters to supplement and support its mobile suits.
For propulsion the White Base relies primarily on its main engines, however when on the Earth's surface the ship can utilize the Minovsky craft system to obtain low altitude flight under gravity without refueling. Unlike Magellan and Salamis classes, with this type of propulsion, the White Base does not require auxiliary boosters to leave Earth's atmosphere. The main body of Pegasus is equipped with a rotating residential section that reproduces full gravity inside even in space, while the hangars can accommodate a large complement of mobile suits and vehicles.
For ship-to-ship combat the White Base is equipped with 2 two-barrel main guns, 2 two-barrel mega particle guns, and eight 3-tube missile launchers. These weapons give the ship firepower comparable to, if not superior to, that of a Musai-class light cruiser, Zeon's main warship and mobile suit carrier. Also, similar to other Federation warships at the time, the White Base is armed with a number of anti-air machine guns to fight off enemy mobile suits. These armaments combined with its mobile suit complement made the White Base a formidable combatant, as verified by its combat record. [Source: wikia]
You may download this gundam paper model here: