Since these forums are read by Arenanet I would like to suggest:
Add a "Mission Failed" message so players dont have to wander through endless maps only to find out that the one they should rescue or talk to has been killed... Its very confusing anyway to see a bright green star that starts fading when you come near and glows up again when you leave.
Please add "Mission Failed!" message...
Pandora's box
Ginko
There is a game suggestions board of Guild Wars Guru, you should post such threads there.
--Ginko
--Ginko
Devil's Dictionary
There is a mission failed screen with a "Return to Outpost" button.