This thread is actually from the very first release of the game, and is quite old. Almost as old as Aktungbby... Anyway, you could use
Webster's Better Air Patrols for v1.4 and v1.5 instead. He included that in his Game Fixes Only mod, which THEBERBSTER repackaged as
All In One BeginnerMod SH4, which is not "beginner" at all. The thread is
THEBERBSTEES All In One Beginners Mega Mod List For SH4. It has multiple options, and really dresses-up the stock game nicely. It is for v1.5 of the game, which is the U-Boat option included.
