Complex sentence: Alan confesses that he has partnered with the Chinese government, that they had a lot of input into the design of the drilling vehicle, and that the vehicle will go to the government after the drilling mission so they can use it as a weapon.
Split into simpler sentences: Alan confesses that he has partnered with the Chinese government, and that they had a lot of input into the design of the drilling vehicle. He confesses the vehicle will go to the government after the drilling mission so they can use it as a weapon.