This video quickly explains how the mod works in the game.
Videotutorial link:
-----------------------------
Link to MOD thread (updated)
http://www.subsim.com/radioroom/showthread.php?t=203850
TOTALLY INCOMPATIBLE WITH OPEN HORIZONS V.2.1. CTD at start new campaign. |||| COMPATIBLE 100% WITH OPEN HORIZONS V.2.0 ¿why??? I don´t know.