The Killimanjaro medal is awarded for killing 7 opponents within four seconds (4.5 seconds for Halo 4) of each other.
If you were to get one barely under the time requirements, you would have to get 7 kills in just under half a minute. It is available in all Multiplayer gametypes, and is assumed to have a Bungie difficulty rating of 10 out of 10 since the Killtrocity medal has a difficulty rating of 9 (out of 10).
It is represented by a platinum circle with 7 yellow stars.
This medal is seen very rarely, and most often in custom gametypes, or in Grifball. When someone gets this medal the announcer will shout "Killamanjaro!" to the player that received this medal. The name is a play on the African mountain, Kilimanjaro.
It is easy to get on Halo 3: ODST's Firefight mode map called Lost Platoon as enemies try to attack your Warthog and you just gun them down. It is recommend to take it to the center structure, so that the Wraiths cannot hit you as easily.
|Halo 2 medals|
|Consecutive Kills||Double Kill • Triple Kill • Killtacular • Kill Frenzy • Killtrocity • Killimanjaro|
|Sprees||Killing Spree • Running Riot • Rampage • Berserker • Overkill|
|Special Kills||Sniper Kill • Stick It • Splatter • Carjacking • Assassin • Bone Cracker|
|Objectives||Bomb Carrier Kill • Bomb Planted • Flag Carrier Kill • Flag Captured • Flag Taken • Flag Returned|
|Halo 3: ODST Medals|
|Sprees||Killing Spree • Killing Frenzy • Running Riot • Rampage • Untouchable • Invincible|
|Weapon Sprees||Shotgun Spree • Sniper Spree • Splatter Spree • Hammer Spree • Stick Spree • Open Season • Sharpshooter • Vehicular Manslaughter • Dream Crusher • Sticky Fingers|
|Consecutive Kills||Double Kill • Triple Kill • Overkill • Killtacular • Killtrocity • Killimanjaro • Killtastrophe • Killpocalypse • Killionaire|
|Style Medals||Beat Down • Assassin • Headshot • Grenade Stick • Laser Kill • Incineration • Death from the Grave • Splatter • Highjacker • Needler Kill • EMP Kill • Hero • Assist • Vehicle Jack|