Central Factory - the following locations have the highest spawn rate (15%) for Smoke Cylinder:
- GF: Maintenance Entrance 1; look for the spawn points on the climbable walls
- GF: northeast of the Control Tower; between the two stairways
- GF: south of the Control Tower; inside the hangars
- GF: Storage Depot; mid-left and mid-right area of the room
- 2F: Large Mechon Store; from the map, look for the H-shaped platform. The spawn point is below it (roughly at the center of the H).
- 2F: Inside the Factory Vent. There is a spawn point on the passage ahead.
- 2F: Inside the Factory Vent. From the map, look for the narrow platform in the middle. The spawn point is at the south end of the platform.
- 3F: Inside the Factory Vent. After reaching 3F, the passages lead to some spawn points, up to the point where the surprise quest prompt appears.
Second set of locations (14%):
- GF: Landing Strip 1 area
- GF: Landing Strip 2 area
- GF: the bridge
- 1F: The floor above Landing Strip 1
- 1F: The floor above Landing Strip 2
- 1F: near the earth elemental ether gear; only accessible by jumping off the lift
- 2F: Training Ground Roof
- 5F: 2 spawn points on the south bridge; 1 spawn point at the end of the east bridge
- 5F: north of the Ventilation Conduit; look for the spawn point up ahead
- Top of the watchtower from 6 a.m. to 7 p.m. (southwest of the entrance of Colony 6).