In order to make the game more dynamic, the context menus which are activated by mouse click, should be activated by the mouse movement (left click and scroll down/release left mouse button to select).
For example, when the mouse scroll or any other button that makes some type of menu appears, the selection will be done by the mouse movement (pressing the left mouse button and rolling down the options), on release, the desired action be selected.
It will make the selections faster, avoiding that we have to scroll down the options by mouse scroll and click. In situations that we miss the right option and need go back by scrolling up, the mouse movement will turn things a lot more easier.
Other thing that complements this suggestions is the context menus appearance. The main menu is perfect! The 'left click and scroll down/release left mouse button to select' feature will make our ARMA even better. Please guys, make this happen!
1.Mouse scroll to make the menus appears;
2.Left Click to liberate mouse movement (up/down) over the menu
3.Release left click to select the option
4.Appearance like the game main menu
Buttons used don't matter (customizable), since the menu works properly