LM terrain is never used automatically (never used in random maps) - it's purely for map designers. Because of that, each scenario can use a different LM Hill - my LM Hill for my scenario can be a plateau, while Winter may have a 'canyon' for his LM Hill, and Pounder may have an LM Hill that looks like a butte - in each case we just need to make sure our LM Hill graphic goes with the scenario when you download it.