Spoiler #3
This seems to be the first troublesome hurdle !
From spoiler #2 and selecting chart option "Croissants" you should've got:
Next clue ...
User dickie is spying on agents of CROAK who are about to unleash a toxin that will destroy half the worlds plant life.
Remove control centre with extreme predudice !
So what about user dickie ?
Spoiler #2 said "So pay attention, you will be using a chart, and at some point a map."
So goto Other Links => Cumulus User Map
Select 'dickie' in the table list.
Please don't kill dickie, although you won't be penalised if you do
He is South of a small airfield, move the crosshairs to the only building (10053) and hit the "FIRE" button.
Next clue pops up (Which also seems to be a 'stumbler' for some)