Outer Caverns

Bristling with deterrents and sentry defences, the Outer Caverns are the outer limits of the Batcave itself.

Overview

Bristling with deterrents and sentry defences, the Outer Caverns are the outer limits of the Batcave itself.
Players must fight their way through to the entrance to the Batcave and assist Robin, Nightwing, Huntress, and Batwoman in setting off an EMP that will stop Brother Eye from turning on its creator.
This location hosts both a Tier 1 Raid and a Tier 1 Alert, accessible after reaching Level 30.

The caverns of the Batcave potentially stretch throughout the underground of the entire Bristol district of Gotham City. While the central cave is located directly beneath Wayne Manor, the batcave's outer caverns can extend as far as the city.
Brother Eye and Brainiac have taken over the Batcave's mainframe and, along with it, the substantial automated defense and security forces.

Brainiac activity has spiked at a hidden location. He must be stopped! Follow the signal and take out ht threat.

Tier 1 Raid available at Level 30.
Outer Caverns is also available as a Tier 1 Alert, with a Combat Rating requirement of 30.

Identify Location
Reset the Defense Generator
Shut down Security Checkpoints (2); [Defeat Riot Control Prototype - First Boss Fight]; Use Spider Bombs on Shield (3)
[Defeat Bat Sentinels - Second Boss Fight]
[Defeat OMAC Infected Bat Family - Final Boss Fight]; OMAC Drain on Shield (4)
Leave the Outer Caverns

The alert version of this instance was introduced to the game via Game Update 4.
Before the first boss are numerous spawners that constantly spit out spider and rocket drones. They are marked with the yellow lightning symbol and only have about 500 health.
Shield Armors, found deeper inside the caverns, will shield their allies or themselves from damage and should be prioritized, otherwise fights will drag on for long.
Triggering the EMP within 15 seconds of it becoming available for the first time will earn the raid the "The Family That Shields Together" feat, worth 25 points.
This area holds 3 out of 9 green investigation tokens (for the Batcave raids as a whole). The remaining investigations are located in the Inner Sanctum.
The Undisclosed Location, previously visited by Tech-origin heroes, can be revisited while traveling through the outer caverns. The area is known as the Outer Sanctum and has been stripped following the previous skirmish.
Was originally titled Batcave: Outer Caverns.