OK class, settle down, it's time for Wehraboo Debate School again. Let's get right to it with this textbook example from where else but /r/warthunder!

Step one: read what your opponent says very carefully. This is vitally important.

Step two: ignore it completely. What they're thinking is "EVERY NATION IN WW2 WAS PERFECT AND LOVELY APART FROM GERMANY". Sure, the words on the screen might say something else but that's because of judao-bolshevik physics or something. Set them right at once!

No country was picture perfect in WW2.

Step three: put on that tracksuit and warm up for the Genocide Olympics. Obviously Badness Of Person can easily by Number Of People Killed, a clear and easily determined figure. Stalin killed at least eleventy bajillion, and is thus badderest.

Stalin killed upwards of 20million people alone during WW2. Before, During, and Shortly after, the numbers reach 60-70 Million people.

Step four: nobody can possibly refute Step Three. Anyone who attempts to do so is some sort of simpleton who, IN ZE GOOD OLD DAYS vud haf been TAKEN AVAY TO EIN CAMP, but because of stupid political correctness we can't do that any more. Nevertheless, take the time to point out the error of their ways in a calm and kindly fashion perhaps by saying

Good fucking day to you retard. God I never met someone so clueless and dumb and ignorant.

Step five: don't forget to provide full and detailed sources for your claims. And by "claims" of course I mean "irrefutable factual facts". This is very simple, just tell them to Google it:

Here, let me do that for you, http://lmgtfy.com/?q=Stalin+Killed+20+Million+People

Every page on the internet is completely trustworthy and accurate, so whatever search results show up will back up your obvious facts. Oh, apart from Evil Communist Propaganda, some of that might show up, but it's really easy to identify because it doesn't come from websites called things like Stormfront or IFuckingLoveHitlerDotCom and any sensible person will know to ignore it.

Step six: inexplicably, some people might not be convinced by the massive weight of evidence you have provided. Despair not! Simply reiterate your convincing argument coolly and calmly:

You a useless fucking troll who is being blinded by ignorance, or your country of Russia, refuses to teach its true history to you. Fuck off now cunt

Step seven: oh boy, they're still not convinced? Better use caps lock! This is the final step that will ever be needed, so you can block your opponent at this point.

YOU STUPID FUCKING CUNT GO LOOK AT THE SOURCES I SENT YOU IN VARIOUS LINKS. GO FIND YOUR OWN SOURCE. YOU NOW JUST WANT TO PISS ME OFF AND GET MORE REACTION. TOO BAD, YOU BLOCKED NOW. STUPID FUCKING RUSSIAN CUNT

Step eight: remember, "YOU BLOCKED NOW" means "I WILL REPLY TO YOU AGAIN"

LOOK AT THE ONES ABOVE! LOOK AT THE FUCKING LINKS AND WIKI AND MATERIAL INSIDE THE LMGTFY LINKS, HOLY FUCK! ARE ALL RUSSIANS THIS FUCKING DUMB?

Step nine: kick back and relax safe in the knowledge that your cool technique and authoritative sources will have convinced any neutral observers.