Thanks for all of the info succerpunch. Just be aware that the TDW_Ship_Plane_Fire_Damage_v1_3_SH4 may well overwrite the new stuff that Fifi just did for the particles, and it and neither it nor TheDarkWraith_DC_Water_Disturbance_v2_0_SH4 have been checked for functionality with OMEGU with Fifi's compilation. I do know that the Water Disturbance was cpu intensive, and might cause issues with a cpu-intensive mod. Use of them would make it difficult to track down certain issues you might encounter.
As for the new sub, I cannot remember what the sequence is, but it does seem to me that you are assigned as you come back in to home port, so the January departure, so long as it is within 30 days of the end of the then current sub's life, will result in one last patrol in it, though its "life" is over... maybe I ought to put one more mission in each of the flotillas for the next update...
