There are a lot of game types compared to Sandstorms battle and team battle.
Objectives: Every man for himself! Kill everyone you see.
Voice: Kill them All!
Objectives: Kill the opposing team before they kill you!
Voice: Eliminate all enemy soldiers
Capture the flag:
Objectives: Capture the enemy's flag before they capture yours!
Voice: Get their flag and bring it back to our base
Defuse the bomb:
Objectives: Either defuse the bomb (Army) or prevent the opposite team from defusing the bomb (Resistance)
Voice: Army (Defuse the bomb before it detonates)/Resistance (Prevent them from defusing the bomb!)