Editing That Just Happened

{{Status|Gameplay}}
{{achievement infobox
|name = That Just Happened
|img  = [[File:ACH30.png]]
|gs   = 10
|game = Halo: Combat Evolved Anniversary
}}
{{achievement infobox
|name = That Just Happened
|img  = [[File:HTMCC Achievement ThatJustHappened Steam.jpg]]
[[File:HTMCC HCEA Achievement CloseQuartersCombat ThatJustHappened.png|140px]]
|gs   = 10
|game = Halo: The Master Chief Collection
}}

'''That Just Happened''' is an [[achievement]] in ''[[Halo: Combat Evolved Anniversary]]'' and ''[[Halo: The Master Chief Collection]]''. It is awarded for completing [[The Library]] without dying on [[Heroic]] difficulty or higher.<ref>[http://halo.xbox.com/en-us/news/headline/halo-combat-evolved-anniversary-achievements/285109 '''Halo Waypoint''': ''Halo: Combat Evolved Anniversary Achievements'']</ref> In the original game the achievement is represented by a skull on top of a purple octagon; in ''The Master Chief Collection'' it is represented by a screenshot of [[Infinity (Halo: Combat Evolved map)|Infinity]] (strangely, sharing its image with the [[Close Quarters Combat]] achievement).

The achievement is worth 10 [[Gamerscore]].
 
== Tips ==
*If you managed to unlock the [[Halo: Combat Evolved Anniversary skulls|Bandanna Skull]], this is the best time to have the skull activated, as it will provide unlimited ammunition.
*If you find yourself in trouble, don't be afraid to revert to your last checkpoint. Reverts do not count as deaths, and will not void your progress.
*Try to run forward to trigger the [[Flood]] to spawn, then quickly retreat to cut down the forces as they approach. Also, repeat the method several times because the waves will be ready respawn the moment that the last wave is wiped out.
*Always make sure your weapons are loaded.
*It is recommended to carry a pistol and a shotgun as your weapons.
*If you find an [[Overshield]], take it.
*Whenever you reach the elevators, avoid confronting the approaching enemies and run to the elevator.
*Never kill a [[Combat Form]] that is armed with a [[Rocket Launcher]] at close range. If they are killed while still armed with the launcher they will fire one rocket at the ground or wherever their arm is pointed before collapsing onto the ground, engulfing everyone and everything around it.
*If you have the mythic skull unlocked, activate it during this level. It will bolster the shields of your allied [[Sentinel]]s and has no effect on the Flood.{{verify}} - I just tested this in MCC, the flood do get more health. No longer valid. 22 October 2025
*Use grenades to take out large spawns of enemies. If using the [[Halo: Combat Evolved Anniversary skulls|Bandanna Skull]], you can spam grenades ahead of you in anticipation of the Flood spawing in. You can also throw grenades at walls as you pass them to bounce grenades back to take out enemies who are chasing you.

==Trivia==
The Achievement's name is a direct quote made by Marine NPCs in ''[[Halo 3]]'': ''"Yeah, that just happened!"'' which, in turn, is a reference to the film ''[[Wikipedia:Talladega Nights: The Ballad of Ricky Bobby|Talladega Nights: The Ballad of Ricky Bobby]]''.

==Sources==
{{Ref/Sources}}

{{Halo: Combat Evolved Anniversary Achievements|ACH30.png|25px}}
{{Master Chief Collection Achievements|HCEA}}