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Smooth Operator
Defeat Oz in Descent.
第一次干掉Oz

How the mighty have fallen
Defeat Oz…again in Descent.
再次擊退Oz

Reunion
Complete Oz's challenges in Descent.
完成Oz的挑戰

Double Tap
Defeat Oz for the last time in Descent.
最后一次擊敗Oz

Big Game
Kill Oz with a Lynx in Descent.
使用Lynx山貓狙擊步槍擊退OZ

Coast 2 Coast
Cross the water with a teleport grenade in Descent.
使用傳送手雷穿出水面

Size DOES matter
Punch Oz with a Goliath in Descent.
使用歌利亞機甲肉搏Oz

K.O.
Punch 20 enemies with a Goliath in Descent.
使用歌利亞機甲肉搏20個敵人

Nah, I'm good
Reach round 7 without anyone opening a door in Descent.
在第七輪之前不打開任何一扇門

Trick Shot
Kill 100 enemies behind you with the KL03-Trident in Descent.
使用Kz03杖型能量槍，利用其子彈彈射擊殺100個身后的敵人