According to #216 (comment)

During development of BARIS, there were plans to have a Zond capsule. If you had developed Voskhod and Soyuz, for 15MB you could convert the Voskhod to the Zond capsule, and it was a two-man vehicle. Its Safety matched Soyuz's safety, from what I've heard. There are still scattered references to it in the code, and we even have pictures for the Zond capsule (liftoff.abz.SVC7.png and rdfull.but.55.png) and mission patches for it (100-109). If we did implement something like this, I would probably want to rename it to L1 for historical accuracy.

I've seen the scattered references to this in the code, and it would be cool to add a planned yet unimplemented feature. Plus, giving the Soviets something unique to distinguish them from their staid American counterparts would serve as an inducement to get more players to embrace Communism.

Unfortunately, I don't know much about the original plans for the Zond/L1 capsule because it wasn't implemented. Consequently, I don't know what resources are available / what is missing.

I'd love to know

• What art resources currently exist for the Zond/L1?
• How would it have differed, in game mechanics, from the Voskhod?