This trailer from MechWarrior Online introduces the Caustic Valley environment from the upcoming mech shooter. Word is: "Today Piranha Games unveiled the Caustic Valley in the Inner Sphere for the upcoming MechWarrior Online – and it’s hot! I mean, the video is hot, but the Caustic Valley (aka CMO 26) is a mineral rich, hazy and brutally hot valley environment that will affect how your mech disperses heat, drastically affecting your gameplay and strategy – especially those with heavier, hotter mechs. Tips and tricks are sprinkled in this MechWarrior Online environment reveal, so pay close attention to which weapons are recommended for victory."