SN1 and SN2 handle the <C> and <Space> keys very differently

In SN1, the <C> and <Space> keys work relative to the orientation of the person/vehicle. In SN2, the <C> and <Space> keys ignore the orientation of the person/vehicle and instead always move toward the sea floor (<C>) or surface (<Space>).

To replicate, simply orient your character with his head straight down toward the sea floor, and then press <Space>. The difference will be obvious.

if this is by design, then I would urge the devs to reconsider.

I see what you mean, but I like the new way better – it’s easier for me to move and look around while floating up or descending. Maybe it could be a gameplay setting…

I like the new way as well… This would be a good gameplay setting though