I open this topic to ask some clarification about questions I didn't found answer for.
I will try to be clear. But I am not comfortable with english. Please excuse me.
Thanks for answering me.
I will begin with some questions about The Stalker's skill : Find the Path alternative use Keep Looking
"You usually only roll to explore sectors that you haven’t explored before. An explored sector should be considered empty, and contains no threats unless the GM decides otherwise. You can roll for Find a Path to find ARTIFACTS, GRUB and WATER in a sector that has already been explored, however – as long as you haven’t already chosen these stunts. Each new roll takes as long as exploring the sector did in the first place."
Let's consider that a group enter an unexplored Sector and get only one success on their Stalker's Find the Path roll.
This gives them informations on THREATS.
After they confront the THREATS the Sector is now considered explored.
But they couldn't get any other information because they didn't get any stunt.
In particular they don't know any information about ARTIFACTS, GRUB, WATER and ROT LEVEL.
Taking more time in that Sector the group can make more Keep Looking roll to get ARTIFACTS, GRUB and WATER.
FIRST QUESTION : Why Keep Looking doesn't allow to ask for informations about ROT LEVEL ?
The Stalker's skill : Find the Path says
"If your group has several Stalkers, only one of you get to roll to Find a Path when you enter a sector. Which one is up to you. If you later roll to find grub, water and artifacts you can all roll individually."
I suppose "later roll" refer to Keep Looking. Tell me if I am wrong.
Let's consider the first Find the Path roll required the group to stay in that Sector for four hours to explore it.
When the groupe stay more time in the Sector to make Keep Looking rolls.
That time imagine that there are two Stalkers who both make a Keep Lookin roll.
The rule says "Each new roll takes as long as exploring the sector did in the first place."
SECOND QUESTION : These two roll will take two times four hours which gives eight hours or only four hours considering the two stalkers are working at the same time ?