Editing Warhammer 40,000 6th edition (section)

===Terrain===
*You may now take armor saves against Dangerous Terrain.
*Area terrain now automatically grants Infantry and Bikes/Cavalry 5+ cover saves, regardless of whether or not it actually obscures them.
*Going to ground in area terrain gives +2 to your cover save instead of +1.
*Getting a cover save from being "obscured" is now defined as being literally blocked from the shooter's perspective; instead of being "intentionally generous" you have to make a judgement call as to what constitutes 25% of the model.