Prove your worth to the Temporal Guardian Initiative(TGI) and farm 1000 zombie kills
Keep farming zombies until you've killed 2500 of 'em.
Farm 7500 zombie kills and you might lose your rookie status in the TGI.
Declare yourself a top asset for the TGI and farm 20000 zombie kills.
Become a legend of the Temporal Guardian Initiative by farming 50000 zombie kills
Take down 250 zombies with a headshot
Take down 1000 zombies with a headshot
Take down 3000 zombies with a headshot
Take down 7500 zombies with a headshot
Take down 15000 zombies with a headshot
Clear out 500 zombies from close range using melee weapons
Clear out 1500 zombies from close range using melee weapons
Clear out 5000 zombies from close range using melee weapons
Clear out 10000 zombies from close range using melee weapons
Clear out 20000 zombies from close range using melee weapons
Survive for 50 rounds of the undead coming for you
Survive for 200 rounds of the undead coming for you
Survive for 500 rounds of the undead coming for you
Survive for 1000 rounds of the undead coming for you
Survive for 2500 rounds of the undead coming for you
Revive 25 teammates in a coop match
Revive 50 teammates in a coop match
Revive 75 teammates in a coop match
Revive 125 teammates in a coop match
Revive 200 teammates in a coop match
Reach round 10
Reach round 20
Reach round 30
Reach round 40
Reach round 50
You survived for 100 rounds in a single game, you're top notch!
Discover the secrets to playing a hidden song
Play 5 games as the Assault Class
Play 20 games as the Assault Class
Play 50 games as the Assault Class
Play 5 games as the Support Class
Play 20 games as the Support Class
Play 50 Games as the Support Class
Play 5 games as the Mechanic Class
Play 20 games as the Mechanic Class
Play 50 games as the Mechanic Class
Play 5 games as the Heavy Class
Play 20 games as the Heavy Class
Play 50 games as the Heavy Class