Unlock the following rewards and experience points by performing the corresponding tasks:
REWARD/(EXPERIENCE POINTS) - HOW TO UNLOCK Assist (150) - Damage an enemy, and have a teammate kill them. Heal Teammate (325) - Restore at least half of your teammate's health. Pack Hunter (550) - Be near a teammate when they kill an enemy. Rescue Kill (700) - Kill an enemy near a teammate that has been knocked down. Synchronized Kill (900) - Kill an enemy at the same time a nearby teammate does. Vendetta (1,200) - Kill an enemy who recently killed a teammate. Crush (1,500) - Kill an enemy with building debris. Beat Down (1,600) - Kill an enemy with a melee attack. Streak Stopper (1,800) - Kill an enemy who is unstoppable. Death from Above (2,150) - Kill an enemy by thrusting down. Remote Save (2,300) - Kill an enemy before they can detonate a remote charge stuck to you or a teammate. Survivor (2,600) - Recover to full health after almost dying. Unstopable (3,050) - Kill five or more enemies in a row. Backwhat? (3,200) - Kill an enemy that is wearing a backpack while you are not wearing one. Knockdown (3,650) - Knock down multiple enemies simultaneously with the concussion pack. Death By Boundary (4,100) - Knock an enemy out of the level boundaries. Stuck (4,400) - Detonate a remote charge stuck to an enemy. Headshot Kill (4,500) - Kill an enemy with a headshot. Who's #1 (5,000) - Kill the enemy with the highest number of kills. Full Control (5,400) - Fully repair a target. Mega Kill (5,800) - Kill multiple enemies within 3 seconds. Back Off (6,600) - Kill an enemy who is melee attacking at close range. Ghost Kill (7,000) - Kill a stealthed Enemy. Bullseye (7,200) - Kill an enemy with a direct rocket hit. Backfire (7,800) - Kill an enemy with their own explosive. You're doing it wrong! (8,250) - Kill an enemy with the Reconstructor. Charge (8,750) - Rhino charge through a wall and kill an enemy. Power Trip (9,500) - With Firepower active, kill an enemy with a melee weapon. Interceptor (10,600) - Kill a ragdolling enemy in mid-air. Hail Mary (10,900) - Kill an enemy from far away without using a gun. Blast (11,500) - Kill an enemy with an explosive barrel or tank. Flagman (12,200) - Kill an enemy with their team flag. Air Strike (13,000) - Kill an enemy while in the air. Shake it Up (14,200) - Kill an enemy while your Tremor pack is activated. Dust Bunny (15,500) - Kill an enemy who is in mid-jump. Good Timing (16,500) - Use the Rhino or Thrust pack to survive an attack. BBQ (17,500) - Hit three enemies simultaneously with the arc welder. Blindside (18,750) - Kill an enemy from behind. Payback (20,250) - Exact revenge within 15 seconds of respawning. X-Ray (22,500) - Kill an enemy through a wall with the rail driver. Sharpshooter (24,000) - Shoot and kill an enemy from far away. Sleeper Kill (27,000) - Kill a fallen enemy with a melee attack. Death from Below (29,000) - Kill an enemy by thrusting up. Rainbow Wars (31,000) - Kill an enemy that is using the heal Pack. Lined Up (33,000) - Hit two or more enemies with one rail driver shot. Doppleganger (38,000) - Kill an enemy that has the same backpack you do. Zombie Kill (44,000) - Kill an enemy from beyond the grave. Vertigo (48,000) - Kill an enemy above or below you. Camper (52,000) - Kill an enemy while standing still. No Problem (56,000) - Kill an enemy while you have full health.