Key bindings/laser painting

I spent almost all 4 days playing the beta.

Long story short - wow!

One thing I noticed as far as bugs is key binding. For example, I switch between full auto and semi auto a lot depending on the distance. I bound this to 'C'.

However, when I pressed it, it would also crouch, even though crouch was bound to L-Shift.

Another thing that did not work was sliding. I had to bind it to a separate key to slide instead of just pressing crouch.

Also, I did not quite understand how laser painting a vehicle should work in the IFV when you're a gunner. I could not figure out whether to press the key once, or hold it down... it's not obvious how it's supposed to behave.

Thanks!