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Oneil Point Rough Terrain Patrol "Rough Terrain #2" Fastest Route Guide
Rough Area 2 has a patrol index mission to clear within 45 steps on Normal, and Hard is completed upon clearing without any special conditions.
Since the Normal map only has 2 floors, it's actually harder to take more than 45 steps, making it easy to clear.
Rough Area 2 Normal Floor 1
Rough Area 2 Normal Floor 2
Rough Area 2 Hard Floor 1
Rough Area 2 Hard Floor 2
Rough Area 2 Hard Floor 3