For this Challenge, you will need to kill Surveyors. You won't be encountering any of these on their own, but when you're fighting Loaders or Constructors, you might be seeing some of these flying around.
- Rank 1: Kill 10 Surveyors
- Rank 2: Kill 25 Surveyors
- Rank 3: Kill 75 Surveyors
- Rank 4: Kill 150 Surveyors
- Rank 5: Kill 300 Surveyors