" An Easter egg is an intentional inside joke, hidden message, or feature in a work such as a computer program, video game, movie, book, or crossword. " -Wikipedia
Several Easter eggs can be found on R2D maps, such as Anti Virus, Dead Vacation, The Subway and New Bloxcoast.
This Easter can be found at Deadvacation near the staircase at the coast. It commemorates the old R2D and its achievements.
Known maps with Easter Eggs
New Bloxcoast by Placerebuilder & Dulexo
This Easter egg can be found on one of the floors of the main building in New Bloxcoast, it depicts a L4D hunter as an employee of the month.
Subway by EvilCreation & Coolman65
Anti-Virus by Creepyloony
This Easter egg can be found in one of the Portapottys in Dead Vacation. Inside of the Portapotty you can find a sitting minion.
This honorable mention of an Easter egg can be found near the construction site on New Bloxcoast, new users may not know at first, this caterpillar can be driven.
This Easter egg can be found on the map Anti-Virus, users may not notice at first, this board is full of random math formulas which together make no sense at all.
This Easter egg can be found near the gas station on New Bloxcoast, depicts the gas prices and how many muffins are left, and reminds users of how much sarcasm and fun was put into the game.