Saw this today - the Kongo had taken 4 fish from USS Sailfish (all 4 fore tubes), then had a Philadelphia Experiment Experience and never sank. This was in 1.4, with NSM classic 3.3, but I'd already seen ship collisions with 1.4 without NSM, so I think it's the patch. The Kongo just kept plowing along through the water like that, screeching metal and all the regular sound effects of a collision. The crew on the DD's bridge seemed pretty nonplussed about it all too.