Unit types

Squads
Squads are the most common unit type. They are weak alone, but additional squadmates may be purchased when the squad is near a base. Squad roles range from mere cannon fodders (most commonly troopers of various factions), across support (battle medics, etc.), to hero units (gemini squad, painbringers, etc). The Scrapyardians are the only faction not to have squads.

Super units
Super units are strong units independent of others. They lack same-cost variety, and may be expensive, but they take less count than squads. New Age Odbiji are the only faction not to have super units.

Armored vehicles
High-hp vehicles that use their own count. They are cheap in relation to their usefulness, but are mostly situation-dependent and can only be built in small numbers (4-6 tanks max). An anti-AV cannon is almost useless against a group of enemy troopers, but can destroy enemy tanks very quickly. The Nertex Cult is the only faction not to have AVs.

Apex units
Apex units are a faction's strongest units. Their build limit is one, but they are very useful. An apex unit can be any aforementioned class.

Commanders
Commander, or war hero (campaign), is an unit that comes with your base. It is the same type as the apex unit, albeit weaker. Campaign war heroes have an unique look and a name, for example - Uton Kolstuc, Carter Telier, ASKNC Guardian MkI, etc.