In this video, we explore how easy it is to add big-ticket DML features ('functional drop-ins') to your mission in very short time (usually less than a minute).
The tutorial demonstrates this by adding CSAR (combat search and rescue) ability to a mission. You'd follow the same steps to add CSAR ability to your own missions - existing or new.
This is part I (adding basic functionality and testing it). Part II discusses working with that CSAR module.
You can download the complete mission here: https://www.digitalcombatsimulator.com/en/files/3329564/