[TheMamba]

Look at it like this:

The people that are firewalled are "camouflaged." They can see you, but you can't see them. At the same time, they can see the tracker and the tracker can see them...but only because they tell the tracker where they are.

You and I aren't firewalled/"camouflaged." I can see you and you can see me - I can throw a paper airplane at you and you can throw one at me since we can SEE each other.

However, neither of us can throw one at the camo'd guys cause we can't see them.

Now...the instant that one of the camo'd guys throws a plane at you...you now know where he's at. Now you can throw one back.

Two camo'd guys can't see each other...EVER. Very bad for the swarm when a lot of people are firewalled because they can't see each other.