Very good!
I have some questions though (oh no, I'm thinking again)

.
1. - ManBT_flood_speed - Where did you start/stop the clock? I observed on default SH4 v1.2 that the GAR took 26-30 secs from "klaxon end" to mast slipping underwater for both "quick dive" and "stationary dive". I'm confused (as always).
2. - crew rating changes - Does this effect the entire war?
3. - crash speed from 2 to 1 - Is this a multiplier of flood_speed ?
Thanks again Ducimus!