The way I see it is, when you kill a titan the server checks for its coords,and sure death of it. possibly meaning that if you kill it in the entrance of a block(ensuring that the area is clear anywhere) you get the code from the instant you kill it meaning you get the code for coords and the death of the boss, sending it and maybe getting a random question mark to appear, its just a theory scince i dont know how the mechanics of dead frontier work. maybe this info will be something close to the actual way to do it. PS: if this helps, and you make something happen,share it with me :P