create a mission on any map
in editor, add a player unit. and then add 2 more units and give them names. Place those 2 units closely together
// please place the uploaded sqf into the mission folder
// in the init.sqf, add this line:
call compile preprocessFile "Mission_Giver.sqf";
// After that, in the sqf file, please find line 3, and add the name to the array
Mission_Givers=[yourUnitName];