Hobbies And Interests
Invincible
The "Invincible" medal is awarded to a player who kills 30 opponents in a row without dying. Many killing spree medals are available, with Invincible being the final and most difficult one. The easiest way to obtain this medal is to play the Big Team Battle game mode, which allows for very large numbers of players on one map.
Killionaire
Killionaire follows along the same lines as Invincible but with an added twist. In order to obtain the Killionaire medal, players must kill 10 other players in a row but each kill must come within four seconds of each other. This means that players have maximum of 36 seconds to achieve this medal, starting from the first kill to the last.
Extermination
The Extermination medal combines the speed requirement of Killionaire with team combat. To achieve Extermination, a player must eliminate an entire team of at least four other players quickly enough to have them all dead at the same time and result in an overkill. You must kill four players in a row with only four seconds between each kill. The easiest way to obtain this medal is to play on a smaller map, where the entire opposing team will be bunched up.
Mmmm Brains
Mmmm Brains achievement is awarded to the player who kills 10 human players in a row as a zombie the Infection game mode. This is an extremely difficult medal to obtain because when a human dies, he will repawn as a zombie. This means that the medal can only be obtained when there are more than 11 players and when you are the only zombie getting kills.