Montekildo, you found an mistake:
The HuntIII is actually blind because it uses the "AII_Visual" instead of the "AI_Visual" sensor. AII_Visual is a sensor used by LSH5 and CCoM but does not exist elsewhere.
It's annoying, that mistake occurred already before ...
Here's the correct file:
http://www.mediafire.com/download/g5..._sensor_fix.7z
Just copy that file into the data/sea/NDD_HuntIII folder of the game.