Deadly_Rounds_1.09.zip is a release file of the Minecraft map Deadly Rounds (Zombie survival mini-game). It was published on February 3, 2013 and is 8.6 MB in size. For the full description, screenshots and every other version, visit the Deadly Rounds (Zombie survival mini-game) map page.
How to install: Extract the .zip and move the world folder into .minecraft/saves; the map then appears in your Singleplayer list.