- Commander Unit (Primary).
- Boosts morale recovery when attached to squads.
- Ability upgrades provide attack and morale bonuses for troops.
- Can use Orbital Bombardment (requires Orbital Relay building).
- Effective against Infantry, Heavy Infantry, and Daemons. Excels at close combat.
- Space Marine forces are generally commanded either by their Chapter Master (the leader of the entire chapter) or one of the Captains (the company leaders). When several chapters are engaged in a single crusade or battle action, the responsibility of overall command goes to the most tactically and strategically able of the leaders involved, who is referred to for the length of the engagement as the "Force Commander".