Convoy Training Mission

[TylerDurden]

Hi. I'm new to this game. I'm trying to complete the training mission but I am confused about the last one. I'm supposed to use the radar/sonar to detect the ship. But I can't turn either of them on. The button in the toolbar is grayed out.

Also, the first tutorial told you about how to navigate the ship and all. But I got very confused in later training missions. I felt I would be better off moving closer to the objectives, but I was really confused with the compas, I could select which way to go, but since I didn't have a compas to adjust to where I was, I didn't know which way to turn the boat... Any tips?