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| Operation | Story |
| FC-6 Known by None |
What the Firelight Casts: Swamp in the Mists Previous FC-5 Next FC-7
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| Where can you go to escape from fate? <Mire> Gradually reduces the ASPD of Operators within, and the ASPD and Movement Speed of enemies within. <Reeds> Operators within gain Camouflage. 4 Reeds are ignited at the start of battle. | |
| Recommended level | Sanity | EXP | LMD |
|---|---|---|---|
| Elite 1 Level 50 | 21 | 210 (252) | 210 (252) |
| Unit Limit | Initial DP | Life Points | Enemies |
| 8 | 10 | 3 | 22 |
| First clear | 3 Stars  3 Stars  60 |
|---|---|
| Regular | Guaranteed 21 Uncommon  |
| Normal | Special Forces Soldier ×3, Dublinn Flamechaser Soldier ×10, Dublinn Cannoneer ×3 |
|---|---|
| Elite | Dublinn Flamechaser Guard ×6 |
| Recommended level | Sanity | EXP | LMD |
|---|---|---|---|
| Elite 1 Level 50 | 21 | 210 (252) | 210 (252) |
| Unit Limit | Initial DP | Life Points | Enemies |
| 8 | 10 | 3 | 22 |
| First clear | 3 Stars |
|---|---|
| Regular | Rare  |
| Special | Very Rare  |
| Extra |           |
| Normal | Special Forces Soldier ×3, Dublinn Flamechaser Soldier ×10, Dublinn Cannoneer ×3 |
|---|---|
| Elite | Dublinn Flamechaser Guard ×6 |