Here is the full list of all 27 Red Comrades Save the Galaxy: Reloaded achievements.
Visit the club
Assemble without a manual.
Don't you dare touching Anka!
Leave the house
Make Kuzmich drunk as a skunk, and high as a mountain.
What's that - a palm?
Find cover to get to the White Army
Talk about Arnie's poster
Tell the Pilot brothers!
Learn about other people of Backwoods
Trick the lieutenant
Make Madeleine drunk
Trick the Chinese man
Are you sure it's the czar?
Find some weapons
Talk about the space janitor
Was he here too?
Sing Murka
Learn Pope's history
Learn the real storyline of Doom
Fly away from this planet
Find Furmanov's head
Escape from captivity
Use the time-machine
Learn the truth (which is out there)
Your dull jokes make Vasily Ivanovich grieve
Finish 100% of the game