In Insurgency 2, the key binding let one use a key or mouse button to cycle through weapons (primary and secondary) and to cycle through tools (rocket launchers, C4, grenades -in Sandstorm's case, that would include binoculars- etc). I think adding that to Insurgency Sandstorm would be great. I prefer that rather than using numbers on the keyboard, and I might not be the only one. Leaves me plenty of room to customize controls.
Thanks for your time and thanks for the game.