The overall campaign element of Supreme Commander 2 (excluding the tutorial) is split into three sections based upon the three factions; UEF, Illuminate and Cybran. Within each faction-based section, the player takes command of an ACU from the respective faction; Dominic Maddox, Thalia Kael, Ivan Brackman. Each campaign is progressively unlocked in a sequential order, by completing the previous campaign's main objectives in the relevant faction.
The campaign maps themselves consist of a segment from the main Storyline, mandatory main objectives, optional secondary objectives and some additional hidden objectives.
On the completion (or failure) of a campaign, the player receives a numerical game score, an overall 'star medal'-based ranking out of five, alongside a breakdown of separate star-based ranks in select game criteria. The criteria assessed throughout each campaign are;
- Time; how quickly the player completed the campaign objectives.
- Combat; speculated to be based on the overall number of units produced, destroyed, lost.
- Research; the amount of research completed.
- Objectives; speculated to be based on the completion of all primary and secondary objectives.
A five 'star-medal' overall ranking, can still be obtained without completing the hidden objectives.
Below is a list of the available campaign maps in Supreme Commander 2, noted in order of availability and sorted by the relevant faction.