Flooding is neatly done, cracked valves and electric sparks; Diesel room is pretty awesome.
The crew sitting idle while under flooding situation had been mentioned in an earlier preview, they wait till you assign them to a repair team (hopefully animated). This might be fixed in the release version or will be patched/modded.
Under the hood, lots of added functionality and interaction code, these will allow the modders to get creative, things that devs started/left unfinished can be realized.. Of course there are still funny stuff, why is the damn periscope still raised on surface, bet you this is a preview bug... Overall the excitement continues to rise
