This is old version

Part of Salyut programme

The Almaz program was a highly secret Soviet military space station program, begun in the early 1960s.
Three crewed military reconnaissance stations were launched between 1973 and 1976: Salyut 2, Salyut 3 and Salyut 5. To cover the military nature of the program the three launched Almaz stations were designated as civilian Salyut space stations. Salyut 2 failed shortly after achieving orbit, but Salyut 3 and Salyut 5 both conducted successful crewed testing. Following Salyut 5, the Soviet Ministry of Defense judged in 1978 that the time and resources consumed by station maintenance outweighed the benefits relative to automatic reconnaissance satellites.

Salyut-2 with Soyuz

Salyut-3 with TKS

This stations have cargo airlock, where you can dock small things like return capsule(lock prograde before deorbit)