That is VERY cool.  Here is my first question then...

(This is ALSO a question for MARK!!):

In the following diagram Blue circles are the attacking models (using a standard ranged weapon...a gun, no sprays).  The arrow inside the blue circles show its facing.  Red circles are the targets.  The Brown rectangle is a wall.  Black lines represent line of sight to the targets.

Who gets cover, Target A or Target B, Both, or Neither?

First off Charlie,  You don't have the Line of Sight's drawn correctly on B.  You can draw Line of Sight from an part of the blue model's volume to any part of the red model's volume that is withn the blue model's front arc.  So because of this you can draw line of sight that goes from the back arc of the blue model over the wall to the red model's volume that is in the blue model's front arc and thus the red model gets cover in Example B.

As for Example A, you can draw a Line of Sight over the cover terrain piece that is within 1 inch of the red model, so the red model get's cover.  The ruling is that in order for terrain to provide cover the Line for Line of Sight has to pass over the terrain piece that provides cover in order for the model to get cover.

Page 43 in Prime.  Under line of sight...specifically the 4 rules to determind LOS:

"1) Draw a straight line from any part of Model A's (Blue guy) volume to any part of Model B's (Red guy) volume that is within Model A's front arc"

Well, I drew the blue guys LOS in his front arc, and he has no LOS line that can be drawn over the cover.

For the record, this is sort of a test, not an argument...I know the answer :)

You'll run into alot of people quoting various rules to contradict your ruling.  So I'm sort of playing Devils Advocate.  So far I'm impressed.

Man, I already have people questioning me.  I answered a rules question last week (pre-Infernal) and now people want to know if my answer is an Infernal answer because now I am one.  See no good deeds goes unpunsihed  It's cool though because I enjoy answering the questions in the rules forum, it is like my stress reliever, it helps to get my mind off of work and put it in a good place. 

I have been answering questions in the rules forum for years and I have seen all the arguments.  Though I think sometimes it is the language tranlastions that sometimes confuse people.  From what I get from the boards, Magical and Magic are the same in French, so you see alot of players asking if a magical ranged attack is a magic attack.

I know it's a test because if it was an argument I would have to sockjack you with all of my extremes models.

1) Draw a straight line from any part of Model A's (Blue guy) volume to any part of Model B's (Red guy) volume that is within Model A's front arc

That's the right way to break down the sentence. 

Draw a straight line from any part of Model A's (Blue guy) volume: it does not say that the line has to start in the front or back arc just from the model's volume.

any part of Model B's (Red guy) volume that is within Model A's front arc: the end point of the Line of Sight has to end on some point in the target model's volume that is in the attacking model's front arc.

I'm convinced!  This guy is good!

For anyone playing at home, this is what he means:

The red shaded section is the only part in the attacking model's LOS...but to test for cover, you don't worry about LOS.  You draw a line from anywhere on the attacker to the shaded section.  Since the green line crosses the wall, the target still gets cover even though the attacker ins't looking through cover.

And for the record, this very question stumped a BUNCH of pressgangers.

So there has been quite the stir on the PP forums.  Apparently our illustrious home grown infernal is getting quite the welcome!  I've seen three threads praising his work already.

Well done buddy!  Just don't burn yourself out! :)

 Very cool. Congratulations, man.  

Once I get playing again, I look forward to calling you up at all hours. :p

Well when can you play my man?  I'm willing to teach some Khador weenies who's boss! :)

(Not really...I can play nice).