Simple Mod Idea (i think)

[GoldenRivet]

I have read numerous sources that indicated that the periscopes were not usable when the speed of the boat was above six knots. because of the hydrodynamic resistance against the periscope above six knots, vibration could damage the periscope.

Is it possible to tie submerged speed to periscope damage?

for example, if the player has the periscope extended, and speed exceeds six knots it will go yellow.

just a thought.... a very nit-pikcy thought but there you have it. (honestly dont expect such a mod to be made... just wonder if it is possible)