First of all I want to mention that this mod is one of the main reasons to leave SH3 and to re-install sh4 and so far I haven't been dissapointed. I am running OpsMonsun_V400 with patch 4 installed, only other mod installed is the PE4.
I found one little issue that you might allready are aware of but maybe you werent..
Anyways, I started in Kiel '39 in a IIB and got my assignment which told me to go to grid AN51 for 48 hours. On the map however the mission icon was placed in AN45. It wasn't really a problem for me but was just curious if anyone else has seen this before.