That's a Knife

That's A Knife

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Halo: Reach

That's A Knife is an achievement in Halo: Reach. To unlock this achievement, a player must perform an assassination on an enemy.

Tactics

• The easiest way to get this achievement is to play a Forge game with another person, have him stand still, and perform the assassination.
• You can also play Nightfall, as the first few enemies you encounter are an Elite and two sleeping Grunts. Any of the Covenant idling there may be eliminated with ease.
• You could also do this in conjunction with the If They Came to Hear Me Beg achievement.
• Another easy way to get this achievement is to assassinate one of the sleeping Grunts on Corvette.

Trivia

• The name of this achievement references dialogue from the film Crocodile Dundee.

Sources

	Achievements in Halo: Reach Source
Campaign	The Soldier We Needed You To Be • Folks Need Heroes... • Gods Must Be Strong • A Monument to All Your Sins • We're Just Getting Started • Protocol Dictates Action • I Need a Weapon • To War • You Flew Pretty Good • Into the Howling Dark • Dust and Echoes • This is Not Your Grave… • Send Me Out... with a Bang • They've Always Been Faster • Two Corpses in One Grave • Your Heresy Will Stay Your Feet • Banshees, Fast and Low • If They Came to Hear Me Beg • ‎Wake Up, Buttercup • Tank Beats Everything • Lucky Me • ‎KEEP IT CLEAN • I Didn't Train to Be a Pilot
Firefight	Crowd Control • Knife to a Gunfight • Score Attack • Firestarter • Blaze of Glory • Heat in the Pipe • Game, Set, Match
Multiplayer	Be My Wingman, Anytime • Skunked! • What's a Killing Spree? • Yes, Sensei
Noble Maps Multiplayer	Both Barrels • Cross-Mappin' • Offensive Driver • Poppin' & Lockin' • Totally Worth It • You Ate All the Chips • You Blew It Up!
Defiant Maps Multiplayer	Candy from a Baby • Crackin' Skulls • Return to Sender • All Alone • Don't Touch That! • Paper Beats Rock
Anniversary Maps Multiplayer	Top Shot • Emergency Room • Stick it to the Man! • Dive Bomber • License to Kill • Bounty Hunter • From Hell's Heart
Training	Doctor, Doctor • That's a Knife • I See You Favor a .45 • An Elegant Weapon… • Swap Meet • A Spoonful of Blamite
Player Experience	Make It Rain • A New Challenger • The Start of Something • An Honor Serving • A Storage Solution • Make it Drizzle • Cool File, Bro • Lemme Upgrade Ya • One Down, 51 to Go