Notes:

Yeah, so Pathfinder had a campaign where Rasputin was a dimension-travelling wizard who the players had to track down and kill.

Part-way through the adventure, you end up i our world during the Russian Revolution where you have to fight Russian Soldiers and their Nosferatu Lieutenants, psychically controlled tanks, Dullahan Cossacks and sentient clouds of poison gas which turn everyone they kill into zombies under their control.

You could also bring anything you wanted back with you, you if you had the strength and capacity, you could bring back a Maxim Gun, field artillery and boxes upon boxes of Mustard Gas. Hell, if the DM was feeling nice, you could probably bring one of the tanks back with you.

However, the most impressive thing is that the average Russian can take multiple Magic Missiles to the face, a couple of fireballs or a few swings from a +1 magic sword without dying.

I don't if it's because the weapons of the Pathfinder world are that weak, or if Russians are just that hard.