Untouchable Medal (Halo 3: ODST)

From Halopedia, the Halo Wiki

The Untouchable Medal is awarded for killing 50 opponents in a row without dying. It is available in Campaign and Firefight gametypes. This medal is very rarely seen and is represented by a 16-pointed platinum star with a yellow target in the middle.

	Halo 3: ODST Multiplayer Medals
Sprees	Killing Spree • Killing Frenzy • Running Riot • Rampage • Untouchable • Invincible
Weapon Sprees	Shotgun Spree • Sniper Spree • Splatter Spree • Hammer Spree • Sticky Spree • Open Season • Sharpshooter • Vehicular Manslaughter • Dreamcrusher • 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!