Battling in a land of acidic haze and caustic heat, be prepared to watch your step and avoid the many sources of heat around the map. Founded by the defunct Commonwealth Mining Corporation, the valley is a lifeless, tide-locked rock laced with titanium, platinum, sulphur and countless other minerals.
As you work your way through Caustic Valley (officially “CMO26”), you might notice that your heat stays up more than usual, and is dispersed less quickly than usual. Giant run-off pipes spill into the area surrounding the centre of the valley– a large bowl-shaped caldera full of heavy dust and brutal heat. Reach the dome covered magma chamber at the top of the volcanic cone at the center, and you’ll really start to notice it. This greatly affects your ability to use heat-producing weapons such as lasers, as they will quickly spike to very high levels.