Halo Wars/Covenant Units

Ghost

 * Cost:
 * Damage: Light
 * Supply:
 * Speed: Fast
 * Armour: Light
 * Shields: Light/Medium (needs to be upgraded)

You start off with one of these when you play as the Covenant. They are cheap and effective as scouts and resource collectors. In large numbers they can prove to be a good fighting force. They can be upgraded with strafe, shields and better weapons.

Wraith

 * Cost:
 * Damage: Heavy
 * Supply:
 * Speed: Slow
 * Armour: Heavy
 * Shields: Medium (needs to be upgraded)

These are the main ground vehicles for the Covenant. They do a lot of damage, but have a slow rate of fire. They are similar to the Scorpion, except that the Scorpion is faster, but has no shields.

Scarab

 * Cost:
 * Damage: Super Heavy
 * Supply: 20
 * Speed: Slow
 * Armour: Very Heavy
 * Shields: None

This is the strongest unit in the game. It is the Covenant's Uber unit, and it can destroy anything.

Grunts

 * Cost: 100
 * Damage: Light
 * Supply: 1
 * Speed: Medium
 * Armour: Light
 * Shields: Light (needs to be upgraded)