Soviet TMK MaVr

Russian manned Mars and Venus flyby. A variation of the TMK-1 scenario by Maksimov's unit would still use a single N1 launch. Flyby of Venus would be undertaken on the return voyage from Mars. This TMK had the code name "Mavr" (MArs - VeneRa), meaning Mars - Venus.

You should launch crew on separate spacecraft

You can use Progress to refuel TMK, if you want to use it as station on Mars/Venus orbit.

MaVr have two probes:
For Mars(Use all fuel before atmosphere entry for better attitude control. Activate landing engines at 15-20m)

And for Venus(it haven't got its own engines, so detach it on collision course)

It have 4 docking ports. Two on the crew quarters. One in airlock/astronomy module. And one above return capsule(inflate it before capsule separation).

Airlock/astronomy module have telescope with high zoom. You can change it with Slider 4

You can use MaVr as station or mothership for other missions after returning to LEO