all files are at true . I do that by going to the game settings (files) put all setting to true.Now I am at 100% real. when I hear or the hydrophone man hear ships .
which way are they going. I lock on to one ship if I can with the hydrophone man. timing how long it takes that ship to go one degree, timing the ship and how long it takes for the ship to go one degree .the longer it takes for a ship to go one degree ,tells me its heading.My heading say is 0 the ship is at bearing 340 ,if it takes that ship 4 min too go one degree , that ship is on the port side. her heading is 160 .Each min less then 4 min. Have fun and play with it till you know what your timing the ship is and its heading is for you. PS . On the hydrophone one ship takes up degrees on the hydrophone. How much space it takes = how near it is to your sub.the more space in degrees it takes the nearer it is .This is my way.