Once upon a time all the Grunts were angry that master chief was being a pussy and hiding behing energy shields. So some noobs told Bungie to make a game variant called SWAT (Stupid Weapons and Tactics). It is now in Halo 3 Matchmaking. THhen, ELites started playing, and so the Elite Massacre occured, making all Elites die forever, to never return to Matchmaking. Ever.