Limited drops:

• VRB
• LAMG

Returning T-Dolls:

• M327
• M240L
• QBZ-191
• SAIGA 308
• CMR-30
• P290

Medal rules:

• obtained upon scoring an S-rank victory on maps with 4/5-star limited drop T-Dolls

• obtained upon defeating an enemy that has a 4/5-star limited drop with an S-rank victory

• in normal stages:

  • 1 Nova Medal for every 4-star limited drop
  • 1 Platinum Medal for every 5-star limited drop

• in EX/UX stages:

  • 2 Nova Medal for every 4-star limited drop
  • 2 Platinum Medal for every 5-star limited drop

• in scoring stages:

  • 1 Nova Medal for every 4-star limited drop
  • 1 Platinum Medal for every 5-star limited drop

• there's no limit to the number of medals you can earn

Exchange rules:

• 300 Nova Medals for 1 limited 3-star T-Doll
• 400 Nova Medals for 1 limited 4-star T-Doll
• 500 Platinum Medals for 1 limited 5-star T-Doll
• each T-Doll can only be exchanged once

Clear rules:

• three stage difficulties - Normal, EX, UX
• clear all event stages on EX to unlock "Antler Brown" and Corrupted Heart Mask
• clear all event stages on UX to unlock "Bone Black" and Corrupted Heart Mask (clearing this difficulty will also unlock EX prizes)