Yes I confirm too. We can't remap the function/movement keys for the submarine.

Maybe, but I have a video of the bug. This is more readable than two small pictures.

Sorry, I forgot my PC specs:
CPU: I7 2600K O/C @ 4.2GHz + Corsair Hydro H50
GPU: SLI EVGA GTX 580 + MSI GTX 580
RAM: 16Go PC3-12800 Kingston HyperX @ 1600MHz
CM: Asus P8P67-Pro
SSD: 128Go Crucial M4 + Windows 7 Pro 64bits

Also, you dont need an AMD card to use PhysX in ArmA 3, because the PhysX is supposed to be handled by the CPU and not the GPU in this soft. So the argument saying that there is no PhysX because it's a property of Nvidia is not valid.

Go buy a Nvidia card! ;-)

My PC specs:
CPU: I7 2600K O/C @ 4.2GHz + Corsair Hydro H50
GPU: SLI EVGA GTX 580 + MSI GTX 580
RAM: 16Go PC3-12800 Kingston HyperX @ 1600MHz
CM: Asus P8P67-Pro
SSD: 128Go Crucial M4 + Windows 7 Pro 64bits

And the game run really bad! I have only 35~40 FPS in editor and 20~30 FPS in multiplayer. I using "very high" preset in 1920x1080 and visibility distance is 6400m and object draw is 1600m only.

My CPU load is 40% and GPU load is 30~50% only.

I play Beta dev build with 2 GTX 580 in SLI. With the latest drivers 320.39. And the submarine is unusable indoors because the screens used to view outside view is unusable. :(

I have this bug too!
Here is a video of the bug (look from 1:19 and from 2:53): http://www.youtube.com/watch?feature=player_detailpage&v=pvZpUCUmJ1A#t=79s
http://www.youtube.com/watch?feature=player_detailpage&v=pvZpUCUmJ1A#t=173s

My PC specs:
CPU: I7 2600K O/C @ 4.2GHz + Corsair Hydro H50
GPU: SLI EVGA GTX 580 + MSI GTX 580
RAM: 16Go PC3-12800 Kingston HyperX @ 1600MHz
CM: Asus P8P67-Pro
SSD: 128Go Crucial M4 + Windows 7 Pro 64bits