100 zerglings vs 20 sieged tanks should be a meat grinder... but when the lings are controlled by the Automaton micro bot, the outcome changes :)
Automaton's stats: 100 speed zerglings vs 20 siege tanks - 19 zergling survivors and all tanks dead.
Mean APM: 8000
Song: The Root of All Evil - Dream Theater
Please note that this is not a 3rd party program - all the code was written in Blizzard's World Editor.
Forum thread: http://www.teamliquid.net/forum/viewmessage.php?topic_id=210057