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Arknights: Endfield

Imminent Incursion Tower Defense Guide

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Arknights Endfield - Imminent Incursion

Interact with Early Warning Terminals to play the Tower Defense mode in Arknights: Endfield. See a guide on Imminent Incursion, how to Auto Defense the hardest stages, its rewards, and how to unlock this game mode here!

List of Contents

Tower Defense Stage Guides

Imminent Incursion Stages
Jingyu Valley Lv. 4 Yinglung Pass Lv. 2
Yinglung Pass Lv. 4

Jingyu Valley Risk Lv. 4 Auto Defense

Required Facilities

Facility Total
Sledgehammer Mortar Sledgehammer Mortar
8
Marsh Gas Mk I Marsh Gas Mk I
5

North Entrance Defense

North Entrance Defense

To guard against the enemies flooding in from the north, place a Marsh Gas Mk I near the entrance, a Sledgehammer Mortar near it, and another pair near the objective.

This takes advantage of the long path by slowing them down and eliminating them with AoE damage before they reach the objective.

East Entrance Defense

Eastern Entrance Defense

In the eastern front, place 1 Marsh Gas Mk I and 2 Sledgehammer Mortars instead. The path is shorter from this entrance, so a second Marsh Gas Mk I is unnecessary.

South Entrance Defense

Southern Entrance Defense

Slow the enemies down in the south with 1 Marsh Gas Mk I and 1 Sledgehammer Mortar. The Hill Smasher here will jump towards the upper platform, while the Quillbeast will roll there using the stairs.

Have the Marsh Gas Mk I slow them immediately as they appear, while the nearby Mortars will attack them for serious damage.

Ground Objective Defense

Ground Objective Defense

Place 2 Sledgehammer Mortars near the ground objective. These will help eliminate enemies that get near your objective, especially those who get past your line of defense or those who were knocked toward the objective by the Sledgehammer Mortars' attacks.

Upper Objective Defense

Upper Objective Defense

To guard the upper objective, simply place 1 Marsh Gas Mk I on the opposite side of the platform and a Sledgehammer Mortar near the objective.

The Marsh Gas Mk I can target both paths leading to the upper objective, slowing down both the wave of Road Plunderers from the eastern entrance and the Hill Smashers and Quillbeasts from the southern entrance, while the surrounding Sledgehammer Mortars eliminate any enemies that come within range.

Yinglung Pass Risk Lv. 2 Operator Intervention

Required Facilities

Facility Total
Sledgehammer Mortar Sledgehammer Mortar
2
Marsh Gas Mk I Marsh Gas Mk I
2
AF1 Armor Fragger AF1 Armor Fragger
2

Ground Corridor Defense

Ground Corridor Defense Yinglung Pass Lv 2

The strategy for either corridor is identical for level 2. Place an AF1 Armor Fragger to start continuously damaging the Bonekrusher Siegeknuckles, spreading his armor scales behind him. These armor scales will damage the enemies that later spawn in.

Marsh Gas Mk I will keep the enemies in place and clustered, while the Sledgehammer Mortar deals massive AoE damage to defeat them in one fell swoop.

Note that the Siegeknuckles spawn positioned more forward than the Raiders. Place the AF1 Armor Fragger further back to compensate.

Upper Corridor Defense

Upper Corridor Defense Yinglung Pass Lv 2

Employ the same strategy in the upper corridor. Use an AF1 Armor Fragger to deal continuous damage to the Siegeknuckles, and eliminate all enemies with the Sledgehammer Mortar while they are slowed by the Marsh Gas Mk I.

Yinglung Pass Risk Lv. 4 Auto Defense

Required Facilities

Facility Total
Sledgehammer Mortar Sledgehammer Mortar
2
Marsh Gas Mk I Marsh Gas Mk I
3
AF1 Armor Fragger AF1 Armor Fragger
2
Torrent Gun Tower Torrent Gun Tower
4
Electrocharger Model A-2 Electrocharger Model A-2
1

Eastern Corridor Defense

Eastern Corridor Defense

This stage requires you to be on the offensive. You need to defeat the enemy mobs as fast as possible to remove the Spotted Rakerbeast's stealth and damage immunity.

For the eastern corridor where the Rockhowlers spawn, place 2 AF1 Armor Fraggers facing each other and a Marsh Gas Mk I nearby, with an Electrocharger Model A-2 near the stairs. Enemies will be continuously slowed as the flamethrowers damage them, with the Electrocharger Model providing additional AoE damage while executing enemies who slip past.

Upper Corridor Defense

Upper Corridor Defense

Bonekrusher Raiders spawn on the upper corridor. Place Marsh Gas Mk I at the corner to slow the enemies down as they enter the corridor. Position the Sledgehammer Mortars to attack the enemy as they spawn.

Western Corridor Defense

Western Corridor Defense

The western corridor is where the Spotted Rakerbeast appears. It moves slowly, and using Marsh Gas Mk I slows it down further, buying plenty of time to clear out the enemies in the western and upper corridors.

Place 4 Torrent Gun Towers nearby to start damaging the Spotted Rakerbeast as soon as its stealth is removed.

Imminent Incursion Details

Tower Defense Game Mode

Tower Defense Mode

Imminent Incursion is a tower defense game mode in Outposts, tasking you with defending Command Cores from waves of enemies using AIC Combat facilities. Imminent Incursion has two modes: Operator Intervention and Auto-Defense.

Operator Intervention allows you to attack enemies with your characters to defeat them quickly, eliminate those who manage to breach your line of defense, or apply crowd-control to enemies with skills. Auto-Defense disables that ability, and players must rely solely on their Combat Facilities to clear the enemies.

List of All Combat Facilities

Imminent Incursion Rewards

Increases Stock Bill Gain

Increase Stock Bill Gain

Completing the highest difficulty in Auto-Mode permanently increases Stock Bills earned by Outposts, up to 20% after clearing Risk Lv. 4. This allows players to trade more AIC Products for Stock Bills in Outpost Management!

How to Get Stock Bills and Farming Guide

How to Unlock Imminent Incursion

Complete the Defense Construction Side Quest

Complete Defense Construction
To unlock the Imminent Incursion feature, you must finish the Defense Construction side quest. The quest will have you participating in your first Imminent Incursion in the Refugee Camp Outpost. Once you finish the quest, Imminent Incursions can start appearing in your other outposts after they reach a certain level.

Defense Construction Mission Guide

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Comment

1 Anonymous Anonymous 9 months

TD sections are very slow. There should be button for some "quick battle"

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