From: Washington D.C.
Why? Most sonar operators are probably good enough to tell a biologic from a real contact. Seaman Beaumont doesn't count.
It depends. After some examination, yes certainly, however, you if you make an initial detection and classification off of maybe a few sniffs of narrowband signal excess, Doppler, etc. then maybe not. It's dependent on the classification criteria (some of them might be more conservative than others), the systems involved, the type of sonar target, etc.
I'm actually thinking more along the lines of a generic "false contact" unit, though. False contacts have a variety of origins, not all of them biological. None the less, the whole point of them is that regardless of origins, they are not quickly distinguishable from submarines. There needs to be a false contact that neither the player or the AI can quickly distinguish as not a submarine. Right now, the AI can't tell the difference, but an experienced player can. The result is that false contacts don't have the impact on the game that's intended if the player is experienced.