Duck Survival DBEnemy camp objective not progressing?
Look for the camp marker, not just the normal wave.
A community location tip for global version 1.4.1. It has not been reproduced on every current stage.
What to check
The Spanish community FAQ reports a green circle with grave markers in Extreme Challenge. Stand on the marked area briefly, defeat the enemies that appear, then check the objective counter.
Use this as a location tip for matching objectives. Different markers or stage wording may indicate a different task; this has not been retested on every current stage.