[Imp]

I downloaded the 2nd one first as I thought the answer to the first would be obvious, it received multiple fires & hence had dust created around it but here is what I see.

Case 1
Err okay the hex it was on & the hex it routed to are woods with high grass.
Guess what pretty hard to see through in real life I would say the slightest instance of dust would effect as in block any view through them. Though its hard to see what you are on about as in the save & replay I cant the unit supposedly fired at in hex 57,25.

Case 2
Wow your taking the piss right?
The trees in hexes 50,24 & 50, 25 allow sight through them.
Looking through both however blocks vision through them, lots of trees now.
So all the unit can see where you are talking about is whats visible through the 50, 25 hex.
Take a ruler or a piece of string stick it on your monitor running from the hex centre & viola you can see the hex centres shown.

Sure you said did programing & debugging so you have got to know there is nothing as annoying as getting bad reporting or the person having no idea about the mechanics of the program.
At the risk of getting banned stop wasting everybodys time, several hours so far & go learn how to play the game before trying to take it apart. I mean come on how basic was the LOS in the second example thats basic LOS mechanics. Made me think you either really havent grasped the basics of this game or you are just flaming.
So please learn the game & let the designers get on with just that they are good at it instead of wasting their time looking at stuff that works just fine.