Defeated 30 armored guard's.(Black\Silver\Guardian)
Alex's first use of skills.
First use of equiproom.
Defeated 20 Battlefield or Mechanical mosquito.
200 kills in Defensive warfare.
Die 5 times.
Death by driving mecha.
Salman's Shield takes 2500 damage.
Li Ying used skills 3 times.
Die 10 times.
Defeat the final BOSS-BERSERKER
Drive mecha, trample to kill 30 enemies
Defeated 30 Mutant.
Destroy 50 machine soldiers with melee attacks.
Destroy 100 wreckage of the machine soldiers.
Completely upgrade one weapon.
Use specialist weapons for the first time.
Destroy 4 machine soldiers at once with a grenade detonation.
Accumulatively destroyed 6 UFO fighter.
Hit 3 times by any large mecha.
Defensive warfare adhere to 5 waves of enemy attacks.
Accumulated player deaths 25 times.
Complete the Campaign on any difficulty.
Destroy 1 UFO fighter with a grenade detonation.
Unlock 4 specialist weapons.
Finish Way to Heaven chapter 1
Finish Way to Heaven chapter 2
Finish Way to Heaven chapter 3
Kill the ultimate mechanical guard
Open the gate to Sky City
Enter Sky City
Finish Transmigration in Sky City once
Level of Transmigration in Sky City reach 3
Defeated 10 Death Claw or Observer.
Defeated 3 Shadowblade.
Destroyed a Mechanical Destroyer.
Destroyed a UFO fighter.
Total number of Cores reached 75.
Blasting 10 barrels.
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