Perk: Environmentally Adapted Sense

Sometimes I open old game notes and find things. This time I was looking at some particularly old notes and stumbled across a perk that looked kind of cool, so I thought I'd share it with you all.

Environmentally Adapted (Sense/Terrain) [Phy] [Mental]

You must specialize by sense and terrain. You can ignore up to -1worth of penalties to your chosen sense when using it to perceive objects in your chosen terrain. This perk can never give a net bonus.

You may buy this perk multiple times, either to increase the level of the original perk or to add a new specialization. When increasing an Environmentally Adapted Sense perk's level, it eliminates an additional -1 to that sense per level. GM's should feel free to limit the maximum allowable level to 3 for most games.