Random Play Mission Requests

Or, explain again, clearly.

Player must contact/meet with Sygurd.
If so, then player follows sygurd until he stops and leaves (runs up to the hill). This is the point when one script must send signal to other script(objectives) to confirm that sygurd has lead player to complex entrence and also another signal to disable player detection.
Player detection: Its made to detect player (if player have'nt met Sygurd and goes to the complex before meeting Sygurd), then Sygurd is "killed" not by soldiers, killed by script.

In this extended version this system does not work as it should, Sygurd leads player to the complex and leaves, but this "player detection" will stay active and if player enters the area (range of 70) then script kills Sygurd wherever he is.

Ah, now I understand. Thanks.
So your suggested solution should work.

Yes it works but this way player can still go to complex befor meeting with Sygurd.

Meh, Sygurd is a retard anyway:

Wtf xD Sygurd left?