2,720
(1,700)

Halo: Reach

4.3 from 13498 votes
 

134,367 tracked gamers have this game, 12,525 have completed it (9.32%) | 834 want to boost

There are a maximum of 69 Halo: Reach achievements (49 without DLC) worth 2,720 (1,700)

Achievement Details

That's a Knife Achievement in Halo: Reach

That's a Knife11 (10)

Online/Offline - This achievement can be obtained in either an online or offline modeSingle Player - This achievement can be obtained in single player game modesCooperative - This achievement can be obtained in non-versus game modes where players work togetherVersus - This achievement can be obtained in modes based on competition against other players
Perform an Assassination on an enemy.

Achievement Guide for That's a Knife

AuthorSolution
Lavindathar
347,666
Lavindathar
Achievement won on 13 Sep 10
TA Score for this game: 2,720
Posted on 13 September 10 at 23:16
This solution has 29 positive votes and 1 negative vote. Please log in to vote.
Incredibly simple achievement.

Approach an enemy from behind, and melee kill him. (Hold RB is the default button).

If the melee hit kills him from behind, it will count as an assasination and the achievement will pop.

Best tactic is when someone runs in front of you on matchmaking, use sprint to catch him then hit him.
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XGC Fragnarok
64,345
XGC Fragnarok
Achievement won on 12 Sep 10
TA Score for this game: 970
Posted on 14 September 10 at 00:37
This solution has 24 positive votes and 3 negative votes. Please log in to vote.
At the very beginning of the "Nightfall" mission you will come upon a hapless Elite with his back to you, an easy target for assassination.
There are 10 comments relating to this Solution | Please log in to comment on this solution.
xxxDarkRuleRxxx
86,265
xxxDarkRuleRxxx
Achievement won on 17 Sep 10
TA Score for this game: 1,384
Posted on 27 September 10 at 16:55
This solution has 17 positive votes and 2 negative votes. Please log in to vote.
You can do this with a second controller.

- In the "Main Menu" select "Custom Game"
- Press Y (Network Mode) and select "My Xbox 360 Console"
- Select Game Type "Assault"
- Select a small map like "Powerhouse"
- Start the game
- Find the other player and stand behind him (you don't have to sneak up)
- Press and HOLD the melee button (RB) until the achievements shows up
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unacquainted
46,979
unacquainted
Achievement won on 02 Jan 11
TA Score for this game: 2,720
Posted on 01 March 11 at 19:29
This solution has 7 positive votes and 1 negative vote. Please log in to vote.
For a long time I didn't realize that you must hold RB, if you tap it it will "melee from behind" but if you hold it for just under a second it will assasinate.

Any grunt in campaign or Firefight, a friend in a custom game, matchmaking...
Nightfall has a helpless elite, though if you do the "they came to hear me beg" achievement you will pop both at once.

I can get 3 to 9 assassinations in some matchmaking games.
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CraftyChris1234
46,836
CraftyChris1234
Achievement won on 22 Jan 11
TA Score for this game: 801
Posted on 25 January 11 at 21:42, Edited on 02 December 12 at 13:29
This solution has 6 positive votes and 1 negative vote. Please log in to vote.
I got this on the 2nd mission of the campaign. When you see weak enemies (the small ones), get behind him and assassinate him by holding RB.
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