Dangerous terrain hinders movement just like difficult terrain. In addition, make a 'Dangerous Terrain' test for each model in the unit that either begins its movement in dangerous terrain, passes through dangerous terrain during its movement, or ends its movement in dangerous terrain. To make a Dangerous Terrain test, roll a D6. On a roll of 2+, the model successfully negotiates the dangers of the terrain without incident. On a roll of 1, the model has suffered a terrible mishap and loses a single Wound.
Note that a model must make a Dangerous Terrain test for each separate dangerous terrain feature it encounters during a single move.