Background: The circumlunar program (Zond), created by Vladimir Chelomey's design bureau OKB-52, was to fly two cosmonauts in a stripped-down Soyuz 7K-L1, launched by Chelomey's Proton UR-500 rocket. The Zond sacrificed habitable cabin volume for equipment, by omitting the Soyuz orbital module. Chelomey gained favor with Khruschev by employing members of his family.
Question: Which type of craft were two astronauts to fly in during Zond?
Answer:<extra_id_0>.
<extra_id_0> Soyuz 7K-L1<extra_id_1>