Legate - The Legate is the commander of your army. He is a powerful unit and if they fall in battle, they will be completely free to recruit for the next battle.
Conscripts - With no armour and no special skills, they are the most basic of military units.
Archer - Best used to weaken defenders before sending in military units. They only have a limited supply of arrows, after depleting their supply they will retreat back to the deployment spot rather than fight in melee combat.
Auxiliary - Quick and lightly armoured, they can use their shield to block incoming missiles while they advance towards the target.
Sapper - Sappers make quick work on tearing down walls, towers, fire pots and caltrops to clear the way for your advancing troops. However, they are not adept at melee combat themselves.
Velites - Armed with javelins, Velites throw missiles at enemy troops from a distance. Velites remain invisible to enemy troops until after a few seconds of combat allowing them to get behind enemy lines undetected.
Light Cavalry - Extremely fast and can be used to quickly race around the battlefield destroying field artillery and setting off fire pots.
Heavy Cavalry - Immune to fire but has high damage against field equipment. They also have a charge ability that deals massive damage to some troops on first impact.
Legionary - Heavily armoured but slow-moving. Their shield blocks all incoming missile damage until they reach their target. Capable of doing massive damage when they first enter battle.
Praetorian - The most elite of all soldiers. Upon reaching their target and engaging in combat, they activate a rally effect that boosts the attack speed and strength of all nearby troops.