MO mod contains Mighty Fine Crew Mod of a bit older version (i believe).
You can read up on it here:
http://www.subsim.com/radioroom/show...ghty+fine+crew
There are also mods that will allow you to have all of the skills or will adjust the special abilities:
http://www.subsim.com/radioroom/showthread.php?t=166236
http://www.subsim.com/radioroom/showthread.php?t=183304