Source: https://www.teamfortress.com/post.php?id=136492(Image credit: Mayor Rev)
Red alert, mercs! April is drawing near, and an unusual yet familiar virus has fallen upon the robotic hordes once again. The aptly named "Meme Machines" are back to wreak havoc, blunder about, and provide a healthy helping of the best medicine money can't buy—laughter! Now sign up for the cheapest insurance plan you can find and grab your guns, because it's time for a comedy session!
Operation Peculiar Pandemonium is an April Fools Mann vs Machine tour brought to you by Moonlight MvM that once again pits the Mercs against a meme-fueled robotic onslaught. Complete all the waves in this intermediate-difficulty tour to earn a special pink tank medal! Event servers are available in North America, South America, Europe, Asia, and Australia.
In addition to wrecking the meme machines, you can also donate to the charity fundraiser for The National Breast Cancer Foundation of Australia. Up to three pink donor medals are up for grabs for donations of A$6 (US$5), A$20 (US$15), and A$33 (US$25). Both cash and TF2 items are accepted. Click here for more information on how to donate.
Have fun, but don’t delay or else the meme machines will conquer the world by April 11th!