This is just another taunt replacement for the Katozsky Kick called the Soldier Stamp. Similar to crazyhalo's Marlon March, I just animated my own Best Mates onto soldier (because he's my favorite class). Same music used, so if there's any conflict of use of that music, please contact me here. Funny story is that I started animating a much more munted version of this before I even knew crazyhalo made it 6 months ago :P
Anyways, enjoy! Just chuck the extracted zip in your tf/custom/tutorial folder (where the extracted zip will have a models and sound file) and you'll be good to go!
Not bad, very robotic though. I suggest adding more bounce to soldier, his torso just seems to be suspended in time. Use the actual meme as a reference and copy the dance frame by frame. Its tedious but it will make a better result.