Multiplayer Shootout question

The multiplayer shootout, how do I add a clock to start off with when the match begins? Also I want to make it so the mouse drags down from the middle of the screen to the holster to equip the weapon then you move the mouse up to draw. I dont want the player to be able to draw without the timer going to 0 if they do its counted as an automatic lost. How do I accomplish this?