View source for Dark Events (LWOTC)

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Dark Events in Long War of the chosen come in two forms: '''Counterinsurgency Ops''' and '''Military R&D'''.  The former represent ADVENT conducting operations to hinder XCOM's progress and bolster their own on the strategic layer. The latter represents improvements made to ADVENT's deployed troops, increasing their performance on the tactical layer; while some are temporary, most of these are ''permanent'' improvements.

Depending on difficulty, the first month Dark Events will begin to generate will be different: June for Rookie, May for Veteran and Commander, April for Legend.

Much like vanilla Dark Events, certain designated missions can be conducted to interrupt and prevent the Dark Event from occurring - but unlike vanilla, you will not be given the opportunity to do so if you do not have contact with the region the Dark Event spawns in.  Since the only way to identify them is to increase your resistance network as wide as possible, it is inevitable that some Dark Events will trigger outside of your coverage regardless of how diligent of a commander you are.

==Counterinsurgency Ops==

ADVENT will attempt to place severe limitations on XCOM operations at the strategic level, in the same way that many Dark Events functioned in vanilla. Fortunately, while they are crippling, they are of limited duration. 

These operations will only appear in regions XCOM has contact with. There can be up to two of these being developed in the world, but only one project can happen in each region without an Alien Facility. The cooldown for these operations is 21 days.

{|class="wikitable" width=100% 
|- align="center"
!style="width:75px;"| Dark Event !! Description || Starting Weight || Weight reduction per attempt || Weight reduction per success || Project time to complete || Project duration after completion || Notes
|- align="center"
| [[Image:XCOM2 DarkEvent UFO.png|150x75px]]<br>'''Air Patrols || Halves the Avenger's contribution to activity detection. || 5 || -1 || 0 || 8-15 days || 14-16 days || -
|-align="center"
| [[Image:XCOM2 DarkEvent SuppliesSeized.png |150x75px]]<br>'''Rural Checkpoints || Halves Haven supply gathering. || 5 || -1 || 0 || 10-15 days || 14-16 days || -
|-align="center"
| [[Image:XCOM2 DarkEvent Crackdown.png|150x75px]]<br>'''Counterintelligence Sweep || Halves Haven intel gathering. || 5 || -1 || 0 || 12-16 days || 14-16 days || -
|-align="center"
| [[Image:XCOM2 DarkEvent SuppliesSeized.png|150x75px]]<br>'''Rural Propaganda Blitz || Halves Haven recruiting. || 5 || -1 || 0 || 14-20 days || 14-16 days || -
|-align="center"
| [[Image:XCOM2 DarkEvent Faceless.png|150x75px]]<br>'''Haven Infiltration || Doubles chance of new rebels being faceless. || 5 || -1 || 0 || 10-15 days || 45-60 days || A Faceless needs to have been encountered for this event to happen.
|-align="center"
| [[Image:XCOM2 DarkEvent Crackdown.png|150x75px]]<br>'''Midnight Raids || Doubles cost of new recruits. || 5 || -2 || 0 || 10-21 days || 28 days || In Rookie or Veteran difficulty this event can't happen in March.
|-align="center"
| [[Image:XCOM2 DarkEvent Cryptography.png |150x75px]]<br>'''Alien Cypher || Increases intel costs by 33% (25% on Rookie). || 5 || -2 || 0 || 21-35 days || 28 days || -
|-align="center"
| [[Image:XCOM2 DarkEvent Traitor.png|150x75px]]<br>'''Resistance Informant || Reduces detection chance for haven retaliations by 90%. || 5 || -2 || 0 || 21-35 days || 21-28 days || -
|-align="center"
| [[Image:XCOM2 DarkEvent UFO.png|150x75px]]<br>'''Hunt XCOM || A UFO starts hunting the Avenger, triggering an Avenger Defense mission if the interception is successful. || 10 || 0 || -4 || 14-28 days || 6-14 days || The first month this event can happen depends on difficulty: October/September/August/July.<br>The interception has a fixed 50% chance to succeed if the Avenger Defense mission hasn't been triggered before, and 0/25/35/50% chance (Rookie/Veteran/Commander/Legend) if there has already been a successful interception before.
|-align="center"
| [[Image:XCOM2 DarkEvent Avatar.png|150x75px]]<br>'''Minor Breakthrough || Adds one point of Avatar Project progress to a random Alien Facility. || 10 || 0 || -2 || 15-20 days || - || If there are no Alien Facilities, the progress will be assigned to the Alien Fortress.
|-align="center"
| [[Image:XCOM2 DarkEvent Avatar2.png|150x75px]]<br>'''Major Breakthrough || Adds two points of Avatar Project progress to a random Alien Facility. || 6 || 0 || -2 || 21-28 days || - || If there are no Alien Facilities, the progress will be assigned to the Alien Fortress.
|}

==Military R&D==

ADVENT will improve the quality and quantity of their deployed troops in ways parallel to Force and Strength levels through these events. Some are temporary, but others are ''permanent'' once triggered; over time, [[ADVENT (LW2)|ADVENT's ground forces]] will gain increases in combat effectiveness, as denoted by additional perks and equipment.

Each upgrade applies to a limited set of enemy types, and only a certain random percentage of enemies will actually have the upgrade. This system serves as the Long War 2 equivalent of Long War 1's [[Alien Research (Long War) | Alien Research]], where aliens gain boosts to stats and bonus perks over time. In this case, however, the bonuses are random and tied to interruptible Dark Events, so you have a chance of encountering powerful upgrades early on or of stopping upgrades from occurring.

These happen in any region regardless of contact, but only one will be developed at the same time, and only in regions that don't have an Alien Facility. The cooldown for these is 12 days.

{|class="wikitable" width=100% 
|- align="center"
!style="width:75px;"| Dark Event !! Description || Starting Weight || Weight reduction per attempt || Project time to complete || Units Affected || Chance for each Unit || Notes
|-align="center"
| [[Image:XCOM2 DarkEvent Vigilance.png |150x75px]]<br>'''Vigilance || Enemies have increased detection range. || 5 || -2 || 21-35 days || - || - || This lasts for 28 days.
|-align="center"
| [[Image:XCOM2 DarkEvent Faceless.png|150x75px]]<br>'''Alien Infiltrator || Adds Faceless to missions. || 5 || -2 || 21-35 days || - || - || A Faceless needs to have been encountered for this event to happen.<br>This event can happen a maximum of 3 times.<br>This lasts for 28 days.
|-align="center"
| [[Image:XCOM2 DarkEvent Chryssalid.png|150x75px]]<br>'''Infestation || Adds Chryssalids to missions. || 5 || -2 || 21-35 days || - || - || A Chryssalid needs to have been encountered for this event to happen.<br>This event can happen a maximum of 3 times.<br>This lasts for 28 days.
|-align="center"
| [[Image:XCOM2 DarkEvent RapidResponse.png |150x75px]]<br>'''Rapid Response || Reinforcements arrive more often in missions. || 5 || -2 || 21-35 days || - || - || An Advanced or Elite ADVENT Officer needs to have been encountered for this event to happen.<br>This lasts for 28 days.
|-align="center"
| [[Image:XCOM2 DarkEvent ShowOfForce.png|150x75px]]<br>'''Show of Force || Increases the effective [[ADVENT's_Agenda_(LW2)#Strength_Level|ADVENT Strength Level]] by 1. || 5 || -2 || 21-35 days || - || - || This event can only happen in Legend difficulty in June or after.<br>This lasts for 28 days.
|-align="center"
| [[Image:XCOM2 DarkEvent ShowOfForce.png|150x75px]]<br>'''Alien Conditioning || Increases HP by 1. || 100 || 0 || 7-9 days 
| style="white-space: nowrap;" | All Enemies || 75% || This event can only happen in June or after.
|-align="center"
| [[Image:XCOM2 DarkEvent NewArmor.png|150x75px]]<br>'''Alien Adaptations || Increases HP by 1. || 100 || 0 || 7-9 days 
| style="white-space: nowrap;" | All Enemies || 75% || This event can only happen in September or after.
|-align="center"
| [[Image:XCOM2 DarkEvent RapidResponse.png |150x75px]]<br>'''Alien Survivability || Increases HP by 1. || 100 || 0 || 7-9 days 
| style="white-space: nowrap;" | All Enemies || 75% || This event can only happen in December or after.
|- align="center"
| [[Image:XCOM2 DarkEvent RapidResponse.png |150x75px]]<br>'''ADVENT Scopes || Increases Aim by 5. || 5 || 0 || 21-28 days
| style="white-space: nowrap;" | All ADVENT Units || 33% || -
|-align="center"
| [[Image:XCOM2 DarkEvent Vigilance.png|150x75px]]<br>'''ADVENT Laser Sights || Increases Crit Chance by 10. || 5 || 0 || 21-28 days
| style="white-space: nowrap;" | All ADVENT Units || 33% || -
|-align="center"
| [[Image:XCOM2 DarkEvent Cryptography.png|150x75px]]<br>'''ADVENT Firewalls || Increases Hack Defense by 15. || 5 || 0 || 21-28 days
| style="white-space: nowrap;" | All Robotic Units || 33% || - 
|-align="center"
| [[Image:XCOM2 DarkEvent RapidResponse.png |150x75px]]<br>'''Veteran Units || Increases Aim by 5. || 5 || 0 || 12-15 days
| style="white-space: nowrap;" | All Enemies || 25% || - 
|-align="center"
| [[Image:XCOM2 DarkEvent NewArmor.png|150x75px]]<br>'''ADVENT Alloy Padding || Increases Armor by 1. || 5 || 0 || 21-35 days
| style="white-space: nowrap;" | All ADVENT Units || 33% || A Codex needs to have been encountered for this event to happen. 
|-align="center"
| [[Image:XCOM2 DarkEvent ViperRounds.png|150x75px]]<br>'''Viper Rounds || Grants Venom Rounds. || 5 || -2 || 21-35 days
| style="white-space: nowrap;" | All ADVENT Units || 12% || This event can only happen in May or after.
|-align="center"
| [[Image:XCOM2 DarkEvent Faceless.png|150x75px]]<br>'''Greater Faceless || Increases HP by 4, Mobility by 2, and Aim and Defense by 5. || 5 || 0 || 10-14 days
| style="white-space: nowrap;" | [[Faceless (LW2) | Faceless]] || 75% || A Faceless needs to have been encountered for this event to happen.
|-align="center"
| [[Image:XCOM2 DarkEvent ShowOfForce.png|150x75px]]<br>'''Tactical Upgrades: Defense || Increases Defense by 5. || 5 || 0 || 12-18 days
| style="white-space: nowrap;" | All Enemies || 33% || - 
|-align="center"
| [[Image:XCOM2 DarkEvent Vigilance.png|150x75px]]<br>'''Tactical Upgrades: Advanced Servos || Increases Mobility by 1. || 5 || 0 || 18-21 days
| style="white-space: nowrap;" | All ADVENT Units|| 60% || Any ADVENT MEC needs to have been encountered for this event to happen.
|-align="center"
| [[Image:XCOM2 DarkEvent RapidResponse.png|150x75px]]<br>'''Tactical Upgrades: Aggression || Grants perk:<br>{{Aggression (LW2)}}<br>Aggression || 5 || 0 || 14-21 days
| style="white-space: nowrap;" |  [[ADVENT Stun Lancer (LW2) | Elite Lancers]] <br> [[Archon (LW2) | Archons]] <br> [[Muton (LW2) | Mutons]]|| 60% || A Muton or Berserker needs to have been encountered for this event to happen.
|-align="center"
|[[Image:XCOM2 DarkEvent RapidResponse.png |150x75px]]<br>'''Tactical Upgrades: Center Mass || Grants perk:<br>{{Center Mass (LW2)}}<br>Center Mass || 5 || 0 || 18-24 days
| style="white-space: nowrap;" | All Enemies || 16% || -
|- align="center"
|[[Image:XCOM2 DarkEvent ShowOfForce.png|150x75px]]<br>'''Tactical Upgrades: Close Combat Specialist || Grants perk:<br>{{Close Combat Specialist (LW2)}}<br>Close Combat Specialist || 5 || 0 || 12-16 days
| style="white-space: nowrap;" | [[Archon (LW2) | Archons]] || 100% || An Archon needs to have been encountered for this event to happen.
|-align="center"
|[[Image:XCOM2 DarkEvent Vigilance.png|150x75px]]<br>'''Tactical Upgrades: Combat Awareness || Grants perk:<br>{{Combat Awareness (LW2)}}<br>Combat Awareness || 5 || 0 || 14-18 days
| style="white-space: nowrap;" | [[ADVENT Sentry (LW2) | ADVENT Sentries]] || 50% || An ADVENT Sentry needs to have been encountered for this event to happen.
|-align="center"
|[[Image:XCOM2 DarkEvent RapidResponse.png|150x75px]]<br>'''Tactical Upgrades: Cutthroat || Grants perk:<br>{{Cutthroat (LW2)}}<br>Cutthroat || 5 || 0 || 12-16 days
| style="white-space: nowrap;" | [[ADVENT Stun Lancer (LW2) | ADVENT Stun Lancers]] <br> [[Faceless (LW2) | Faceless]]|| 67% || An ADVENT Stun Lancer needs to have been encountered for this event to happen.
|-align="center"
|[[Image:XCOM2 DarkEvent Vigilance.png|150x75px]]<br>'''Tactical Upgrades: Damage Control || Grants perk:<br>{{Damage Control (LW2)}}<br>Damage Control || 5 || 0 || 14-21 days
|style="white-space: nowrap;" | [[ADVENT Mec (LW2)| ADVENT MECs]] <br> [[ADVENT Turret (LW2) | ADVENT Turrets]] <br> [[Codex (LW2)|Codices]] <br> [[Gatekeeper (LW2) | Gatekeepers]] <br> [[Sectopod (LW2) | Sectopods]] || 20% || A Codex needs to have been encountered for this event to happen. 
|-align="center"
|[[Image:XCOM2 DarkEvent ShowOfForce.png|150x75px]]<br>'''Tactical Upgrades: Grazing Fire || Grants perk:<br>{{Grazing Fire (LW2)}}<br>Grazing Fire || 5 || 0 || 18-21 days
| style="white-space: nowrap;" | [[ADVENT Officer (LW2) | Elite Officers]]<br> [[ADVENT Gunner (LW2) | ADVENT Gunners]] <br> [[Muton Elite(LW2) | Muton Elites]]<br> [[ADVENT Avatar (LW2)| ADVENT Avatars]] || 25% || -
|-align="center"
|[[Image:XCOM2 DarkEvent RapidResponse.png|150x75px]]<br>'''Tactical Upgrades: Hard Target || Grants perk:<br>{{Hard Target (LW2)}}<br>Hard Target || 5 || 0 || 14-21 days
| style="white-space: nowrap;" | [[Archon (LW2) | Archons]] <br> [[Codex (LW2)|Codices]] <br> [[Viper (LW2) | Vipers]] & [[Sidewinder (LW2) | Sidewinders]]|| 25% || A Viper, Naja or Sidewinder needs to have been encountered for this event to happen. 
|-align="center"
| [[Image:XCOM2 DarkEvent ShowOfForce.png|150x75px]]<br>'''Tactical Upgrades: Hunter's Instincts || Grants perk:<br>{{Hunter's Instincts (LW2)}}<br>Hunter's Instincts || 5 || 0 || 14-18 days
| style="white-space: nowrap;" | None || None || A Viper, Naja or Sidewinder needs to have been encountered for this event to happen. 
|-align="center"
| [[Image:XCOM2 DarkEvent ShowOfForce.png|150x75px]]<br>'''Tactical Upgrades: Infighter || Grants perk:<br>{{Infighter (LW2)}}<br>Infighter || 5 || 0 || 8-10 days
| style="white-space: nowrap;" | [[ADVENT Stun Lancer (LW2) | ADVENT Stun Lancers]] <br> [[ADVENT Avatar (LW2)| ADVENT Avatars]]|| 50% || An ADVENT Stun Lancer needs to have been encountered for this event to happen.
|-align="center"
|[[Image:XCOM2 DarkEvent Vigilance.png|150x75px]]<br>'''Tactical Upgrades: Iron Skin|| Grants perk:<br>{{Iron Skin (LW2)}}<br>Iron Skin || 5 || 0 || 12-16 days
| style="white-space: nowrap;" | All Robotic Units|| 100% || Any ADVENT MEC needs to have been encountered for this event to happen.
|-align="center"
| [[Image:XCOM2 DarkEvent Vigilance.png|150x75px]]<br>'''Tactical Upgrades: Lethal|| Grants perk:<br>{{Lethal (LW2)}}<br>Lethal || 5 || 0 || 18-21 days
| style="white-space: nowrap;" | All [[Alien_Life_Forms_(LW2) | Alien Units]] || 8% || A Gatekeeper needs to have been encountered for this event to happen.
|- align="center"
| [[Image:XCOM2 DarkEvent ShowOfForce.png|150x75px]]<br>'''Tactical Upgrades: Lightning Reflexes|| Grants perk:<br>{{Lightning Reflexes (LW2)}}<br>Lightning Reflexes || 5 || 0 || 14-18 days
| style="white-space: nowrap;" | [[ADVENT Stun Lancer (LW2) | ADVENT Stun Lancers]] <br> [[Chryssalid (LW2)| Chryssalids]] <br> [[ADVENT Avatar (LW2)| ADVENT Avatars]]|| 20% || An ADVENT Stun Lancer needs to have been encountered for this event to happen.
|- align="center"
| [[Image:XCOM2 DarkEvent Vigilance.png|150x75px]]<br>'''Tactical Upgrades: Resilience|| Grants perk:<br>{{Resilience (LW2)}}<br>Resilience || 5 || 0 || 10-14 days
| style="white-space: nowrap;" | [[Codex (LW2)|Codices]] || 100% || A Codex needs to have been encountered for this event to happen. 
|- align="center"
| [[Image:XCOM2 DarkEvent Vigilance.png|150x75px]]<br>'''Tactical Upgrades: Shadowstep|| Grants perk:<br>{{Shadowstep (LW2)}}<br>Shadowstep || 5 || 0 || 14-21 days
| style="white-space: nowrap;" | [[Codex (LW2)|Codices]] || 100% || A Codex needs to have been encountered for this event to happen. 
|-align="center"
| [[Image:XCOM2 DarkEvent ShowOfForce.png|150x75px]]<br>'''Tactical Upgrades: Shredder|| Grants perk:<br>{{Shredder (LW2)}}<br>Shredder || 5 || 0 || 14-18 days
| style="white-space: nowrap;" | [[ADVENT Gunner (LW2) | ADVENT Gunners]] <br> [[Muton Elite(LW2) | Muton Elites]] <br> [[ADVENT Avatar (LW2)| ADVENT Avatars]] || 16% || An Advanced or Elite ADVENT Officer needs to have been encountered for this event to happen.
|-align="center"
| [[Image:XCOM2 DarkEvent Vigilance.png|150x75px]]<br>'''Tactical Upgrades: Tactical Sense|| Grants perk:<br>{{Tactical Sense (LW2)}}<br>Tactical Sense || 5 || 0 || 18-21 days
| style="white-space: nowrap;" | [[ADVENT Officer (LW2) | ADVENT Officers]] || 50% || An Advanced or Elite ADVENT Officer needs to have been encountered for this event to happen.
|-align="center"
| [[Image:XCOM2 DarkEvent NewArmor.png|150x75px]]<br>'''Tactical Upgrades: Will to Survive|| Grants perk:<br>{{Will to Survive (LW2)}}<br>Will to Survive || 5 || 0 || 14-21 days
| style="white-space: nowrap;" | [[Sectoid (LW2) | Sectoids]] <br> [[Viper (LW2) | Vipers]], [[Naja (LW2) | Najas]] & [[Sidewinder (LW2) | Sidewinders]]|| 15% || - 
|}

=== Disabled Events ===

These upgrades are meant to be disabled in the latest version.

{|class="wikitable" width=100% 
|- align="center"
! Dark Event !! Description || Starting Weight || Weight reduction per attempt || Project time to complete || Units Affected || Chance for each Unit || Notes
|-align="center"
| Tactical Upgrades: Deadshot || Grants perk:<br>{{Deadshot (LW2)}}<br>Deadshot || ? || ? || ?
| style="white-space: nowrap;" | [[Viper (LW2) | Vipers]], [[Naja (LW2) | Najas]] & [[Sidewinder (LW2) | Sidewinders]] <br> [[ADVENT Avatar (LW2)| ADVENT Avatars]]|| 33% || The code for this event does not exist.
|-align="center"
| Tactical Upgrades: Formidable || Grants perk:<br>{{Formidable (LW2)}}<br>Formidable || 5 || 0 || 18-21 days
| style="white-space: nowrap;" | [[ADVENT Officer (LW2) | ADVENT Officers ]] <br> [[ADVENT Grenadier (LW2) | ADVENT Grenadiers]] <br> [[ADVENT Rocketeer (LW2) | Advanced/Elite ADVENT Rocketeers]] <br> [[ADVENT Shieldbearer (LW2) | Advanced/Elite ADVENT Shieldbearers]] <br> [[Muton (LW2) | Muton Centurions and Elites]] <br> [[ADVENT Avatar (LW2)| ADVENT Avatars]]|| 15% || This event is coded to never be picked, but it may be picked anyways.
|- align="center"
| Demolitions Experts || Grants perk:<br>{{Sapper (LW2)}}<br>Sapper || 5 || 0 || 12-15 days
| style="white-space: nowrap;" | [[ADVENT Officer (LW2) | Elite ADVENT Officers]] <br> [[Muton (LW2) | Mutons]] || 25% || This event is disabled in the code.
|}