Welcome aboard Pingjockey,
As Molon Labe already told you, your "non classified expertise" could be of interest to Dr. Sid mostly because he's designing a totally new sonar model for ComSubSim.
The focus is realism, and to be honest I doubt that just modding the database files in Dangerous Waters could improve the "acustic modelling" part of the simulation.
What we need, is a realistic sonar model and since that is impossible to achieve in DW, the only chance to get it "right" is within ComSubSim.
