Okay, so I am playing Arma II on low settings.

I need help with the controls:

When I make my own controls (I am using Xbox 360 Controller) - How come sometimes it marks down in red?

Also, let's say I use the letter "Y" for getting in and out of a vehicle, and then use "Y" to reverse in that vehicle, what would it do? Would it get in the vehicle, or would it reverse? - This is so confusing!

Also, another problem: When I got near a vehicle, a green list came up on the left, giving me options on what to do, such as: Get in vehicle, get in passenger's seat, get in gunner's seat etc... - How do I move through the list to select my desired option? - I don't know how to go up or down on the list!

One more thing: If I assigned the same key to, two different commands, such as "B" to shoot and "B" to sprint, would I need to change the sprint button to Bx2? - Would I need to press "B" twice instead?

Thanks a lot for all your help!