This post provides a Guide to the Hardcore Mode in Division 2.
Equip a chest with Unbreakable.
Equip the Reviver Hive.
Equip a chest with Unbreakable.
Equip the Reviver Hive.
Equip a chest with Unbreakable.
Do not equip the Reviver Hive as it is hackable skill: Keener hacks the reviver hive (deployed or carried) to spawn a stinger hive.
In general: Do not equip hackable skills.
Use the Anti-Keener Build described below.
Equip a chest with Unbreakable.
Equip the Reviver Hive.
Equip a chest with Unbreakable.
Equip the Reviver Hive.
Use the specialization "Technician" for the Laser Pointer to pulse Keener. Use the skill Jammer Pulse to pulse Keener and destroy his drone. Use at least four pieces of Heartbreaker to pulse Keener with Headshots and gain stacks of bonus armor and bonus damage when shooting the pulsed Keener. Use the Kingbreaker with its talent Perfect Flatline to amplify your weapon damage by 20% to pulsed enemies and apply pulse to the next enemy you hit after two kills. To be done: Should we use more than four pieces of Heartbreaker? Which pieces of Heartbreaker should we use? Determine if killing Keener's drones counts towards the kills for Perfect Flatline.