Have observed this as well. It doesn't always occur though. Sometimes it does, other times it works fine. Have observed this in the showcase vehicle mission, but have also had the mission work fine as well. The point being, it seems to be a randomly occurring issue.

I would agree... this is a recurring issue with this series.

I think it would be most helpful to add an option. I don't personally see a need for a stance indicator, but I've noticed a lot of desire for this on other forums that have been discussing the game so I would say it is certainly worth considering. Just ensure that it can be turned off as well!

I agree on this. Maybe limit movement to walking speed when switching.

The animation also continues past the extent of the ladder. A tweak to correct this, or perhaps a transitional animation for dismounting the ladder would be a good fix.

This is rather annoying and ought to be fixed. It kills the otherwise very nice looking effects of swimming.