Editing Harbinger (achievement)

{{Status|Gameplay}}
{{Disambig header|the ''[[Halo 5: Guardians]]'' achievement|the character seen in ''[[Halo Infinite]]''|the Harbinger}}
{{Achievement infobox
|name = Harbinger
|img = [[File:H5-ConceptArt-RingStructure.jpg|140px]]
|game = Halo 5: Guardians
|gs = 10
}}
'''Harbinger''' is an achievement in ''[[Halo 5: Guardians]]'', awarded for keeping [[Blue Team]] alive during the level [[The Breaking]] on [[Legendary]] difficulty.<ref>[https://www.halowaypoint.com/en-us/community/blog-posts/halo-5-guardians-achievements-revealed '''Halo Waypoint''' - ''Achievements Revealed'']</ref>

== Strategy ==
The achievement does not require that all of Blue Team never die; at least one member never dying is enough to grant it. The achievement will not be awarded until the level is fully completed, including the cutscenes, meaning it will be granted at the start of [[Guardians (level)|Guardians]].

While possible on solo, it is best done on [[cooperative play|co-op]] for communication with one's teammates. Should this achievement be done on co-op, it is recommended that [[Frederic-104]] be selected due to his loadout containing a [[M395 DMR#M395B Designated Marksman Rifle|DMR]] and [[M6H magnum#M6H2 Personal Defense Weapon|magnum]] along with 3 frag grenades. The extra frag grenade can be useful in taking out groups of [[Promethean Crawler]]s throughout the level, while the DMR and magnum allow Fred to score up to 81 headshot kills before needing to replace his weapons, assuming he hasn't refilled ammo for either of them. Although [[Kelly-087]] and [[Linda-058]] have the [[M45 shotgun|Shotgun]] and [[SRS99-S5 AM sniper rifle|Sniper Rifle]], respectively, they are slightly less useful as the Shotgun is only good for taking down Soldiers at close range and the Sniper Rifle easily runs out of ammo, even more so than the Shotgun. It is also recommended to have few or no skulls on to make the mission and achievement easier.

Should three of the four characters of Blue Team be downed, the surviving character must quickly fall back to a safe place to allow the other players/members to respawn as quickly as possible. The enemies to watch out for are [[Armiger Officer|Soldier Captain]]s with [[Z-520 splinter turret|Splinter Turrets]], [[Armiger Sniper]]s with [[Z-750 binary rifle|Binary Rifles]], and [[Promethean Knight]]s (especially [[Knight Commander]]s) with [[Z-390 incineration cannon|Incineration Cannons]], as the latter two enemies can instantly kill a character and make him/her unrevivable until next respawn, while Soldier Captains cannot instantly kill a character and make him/her unrevivable but are otherwise extremely dangerous with their Splinter Turrets.

Upon reaching the triple [[Warden Eternal]] boss fight at the end of the level, it is actually possible to skip it by taking one of the [[man cannon]]s in the arena (preferably the one on the right), boosting towards the platform that eventually leads to [[Cortana]], and then doing a [[Spartan abilities|ground pound]] onto the platform, clambering onto it, and simply running to the room at the end. This still unlocks the achievement, so long as at least one player stays alive throughout the entire level.

The following criteria will block this achievement from being unlocked:
* Dying on solo and being sent back to the previous checkpoint (this can be averted by simply returning to the main menu as soon as the player dies)
* With 2 or 3 players, all 2 or 3 players dying (regardless of whether or not the remaining NPC teammates are still alive)
* Manually reverting to last checkpoint (regardless of whether or not the [[Halo 5: Guardians skulls#Iron|Iron]] skull is on)
* Using [[Campaign scoring|Score Attack]] (this disables both of the mission's cutscenes)

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

{{Halo 5: Guardians Achievements}}