The Army of the Undead must fight the Orcs, who still serve the Burning Legion.
Each tribe of the Orcs will send small troops against you, but they never attack simultaneously.
However, your base will be in constant danger.
It is worth expanding the defense with a few additional towers on each side.
Add a few Ghouls and a few Crypt Fiends to the base defense.
Your objective is to defeat the red tribe of Orcs that guard the portal(6).
The other Orc tribes don’t need to be eliminated, but they will make the gameplay much easier.
It is best to start by destroying the base in the west (2).
This is an isolated place that is easy to attack because other enemies will not react to this aggression.
The more health points, the more damage this ability inflicts.
The Frost Nova is a great tool for attacking groups of enemies and slowing down melee units.
Lich can also strengthen your units with the Frost Armor.
Use this skill on Arthas or a Frost Wyrm.
Frost Wyrm is another novelty available in the Undead race.
This is the most powerful unit that has a high amount of health points and can inflict powerful damage.
However, it’s attack speed is quite slow.
The greatest skill of this unit is the Freezing Breath.
When assaulting the Orcs guarding the portal(8), you must be careful of two things.
The second squad are Crypt Fiends, which will attack the mighty dragons.
Without their support, the Gargoyles and Frost Wyrms will find it difficult to defeat the dragons.
It is important to quickly destroy the dragon lairs and stop their production.

Before you launch an attack, wait for Arthas and Kel’Thuzad to recharge their final skills.
The Resurrection will come in handy when you’ve lost several units or defeated at least 6 enemies.
Death and Decay will accelerate the destruction of enemy buildings.
Destroy all production buildings, towers and red player units to complete the mission.
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