Vanguard

The Vanguard is the front line of the squad. His Biotic powers focus on combat potential - disabling the enemy, making their armor ineffective, and shielding himself from harm so that he can get close enough to go to work.

Sentinel

The Sentinel is a support-focused character, possessing Biotic and Tech abilities mostly focused around controlling the battlefield and keeping the squad alive. The Sentinel is surprisingly durable, with access to many of the shield-increasing talents, along with the Barrier Biotic power.

Infiltrator

The Infiltrator possesses a mixture of Combat and Tech talents. The Infiltrator possesses an array of Tech abilities that focus on disabling and crippling the enemy.

Engineer

The Engineer possesses all Tech abilities, but can only equip light armor. He possesses no Biotic skills. Tech skills focus on crippling and damaging the enemy. Engineers also possess the First Aid and Medicine talents, making their healing very effective.

Adept

The Adept possesses all Biotic abilities, but can only equip light armor. He also possesses no Tech skills. Biotic powers focus on manipulation of the environment and your enemies, instead of direct offense - crowd control, instead of the traditional fragile yet devastating "spellcaster".

Soldier

The Soldier is the full spectrum warrior of the squad. He may specialize in any weapon he chooses and possesses an array of talents focused on improving his durability and damage. His major weaknesses are his complete lack of Biotic and Tech abilities, relying on his squadmates to pick up the slack in those areas.