how?
 

how in the world do you get the radarman to sweep? its never highlighted for me. :cry:

Re: how?
 

If you have upgraded your sub with radar, then your Radio Man should have the option to allow you to do a continuous sweep.

Also you have to be on the surface. Mine is intermittent, as if big waves or bad weather makes it turn off. Sometimes I'll turn it on manually and sit in the station, then when I leave and return to my bunk I see the damn operator staring a blank screen. Maybe I point my pistol at him? But I guess maybe its default is off since you don't want to accidently turn it on when you're near the enemy and give away your position.