Amizaur,
I read that post on Battlefront as well and I'm not sure how much could be tweaked in the DBs to produce the results Marconi is critiquing (but perhaps quite a bit could be done)?
But to say that SC did a much better job of simulating underwater performance (Bernoulli's Principal - bouyancy/lift, the effect of mass and surface area, etc. etc) than DW does currently is highly unlikely. The reason is that DW has a far more robust physics implementation than SC ever did (i.e. the dreaded airborne submersibles are evidence enough in SC
).
Perhaps some of the coefficients or variables in the equations that we simulated are a bit off from real life (I'm not sure, but I'll concede that it's certainly possible) but I would imagine that tweaking the numbers in the DBs will only work to some level for some situations (i.e. fix one instance to make it realistic but it breaks another one)...
The physics engine is a definite upgrade and is based off of multiple real-life formulas for all sorts of physical criteria - so in that sense it "should be" vastly more accurate than the one in SC...