Example of addaction and bis_fnc_mp

init.sqf

fnc_OnLaptopInteract = {
// send [], to function "fnc_mission_OnUseLaptop", false = to server, isPersistent = false
[[], "fnc_mission_OnUseLaptop", false, false] spawn BIS_fnc_MP; // launch a RPC to the server telling it to execute the function called "fnc_mission_OnUseLaptop"
};

fnc_mission_OnUseLaptop = 
{
	_countdown = 300;
	MyNonPrivateValue = 5;
	while{_countdown > 0 || !triggerActivated _trg} do // while count is under 300 and the trigger has not been activated keep counting
	{
		_countdown = _countdown - 1; // remove one second from the countdown
		uiSleep 1; // uiSleep is exactly 1 second.
	};
	if(_countdown <= 0) then // we counted down
	{
		//win
	}
	else // enemy got to the plane or something
	{
		// lost
	};
		
};

add in addaction code
[] spawn fnc_OnLaptopInteract;