//init.sqf
[west, "task1", ["Find the box and click on it.", "Click the box", "CLICK IT"], getpos "box", "assigned"] call BIS_fnc_taskCreate;

//action2.sqf

["task1", "succeeded"] call BIS_fnc_tasksetstate;
[west, "task2", ["You clicked on the box, now get out of here.", "Clicked the box", "EXFIL"], getmarkerpos "exfilmarker", "assigned"] call BIS_fnc_taskCreate;

//mission ending trigger
["task2", "succeeded"] call BIS_fnc_tasksetstate;
["end1", "true"] call bis_fnc_endMission;