Classes (EU2012)

Soldiers in X-COM: Enemy Unknown are divided into classes, where each class has unique abilities (a.k.a. "perks"). On the first level up from Rookie to Squaddie the soldier gets assigned a random class with an initial ability. As they level up soldiers get to choose one of two abilites (with some exceptions) on each level to a total of 6 more (7 including the Squaddie rank).

Rookie Squaddie Corporal Sergeant Lieutenant Captain Major Colonel

Assault

A mobile soldier with extra power at shorter range, a good choice for close quarter combat and maps with constricting spaces and limited vision.

Abilities

1 Run & Run (allows to move and make a shot, including dashing)

2 Tactical Sense (+5 to defense per enemy close to you, up to 20 ), Aggression (+10 to crit per enemy close to you up to 30)

3 Lightning Reflexes (ignores first reaction fire on that turn), Close & Personal (+ 30 to crit, reduces with distance)

Heavy

1 Fire Rocket

2 Bullet Swarm, Holo-Targeting

3 Shredder Rocket, Suppression

4 HEAT rounds, Rapid Reaction

5 Grenadier, Danger Zone

Sniper

1 Headshot

2 Snap shot, Squad sight