Lifeboats And Ship Smoke

[Fish40]

Just a couple of quirks (mabey) that I was wondering about. I see screenies of sinking ships with lifeboats deployed. I have yet to see a lifeboat when I sink a ship. All I get is the usual debris floating on the surface. Do all ship types deploy lifeboats upon sinking?

Another thing I noticed is that sometimes the smoke from the ship's stacks is not visable. Other times it depends on the angle or light condition to be able to see it. From what I noticed at least, the stack smoke is not as voluminous as it is in SH3. I do have smoke from fire and explosions, so I thought the stack smoke thing was kinda wierd. Any ideas, or advice? Thanks.