This is the entry of an Obstacle: How do they provide cover without blocking LoS? Cover says but Obstacles DO NOT blocks LoS... Am i missing something?
Because of this: It's not because Obstacles block actively LoS, it's because they can provide Cover (assuming they would block LoS if they were Characters or Blocked Spaces). Hope it helps! :3
But the first requisite of Cover is to have a space that block LoS. And under the Cover rules, the Obstacle "exception" is not stated anywhere. The only thing i see is a different wording. BLOCK or OBSTRUCT LoS. But i don't think it is enough to explicit the difference.
If a model is behind 2 Obstacle, you cannot draw an unobstructed line to any of his space's vertices. So you CANNOT claim to have a LoS to a model that should be plainly visible. Green are 2 obstacle, red cannot claim LoF to white. There is no way to draw an unobstructed line. Can you see the fault in this?
And that's why exists this precise sentence in Obstacles: So yes, you can't draw an unobstructed LoS (meaning you can get Cover), but, as the previous sentence is an override of the Bloced LoS rule, you can draw LoS from Red to White. :3
But to have a LoS you need UNOBSTRUCTED lines... I'm not bitching, I understand that you have LoS in that case. But this is one of those rare cases where rules say otherwise...
No, it's really more one of those cases where you don't understand how rules apply. First bullet point, it says it counts as an occupied space HOWEVER second bullet point states that the obstacle provides cover DESPITE the fact that does not obstruct LOF in anyway. Your citation of general rules for cover is useless, because the rules for Obstacles literally state that traditional rules for cover doesn't apply with obstacles.
The Cover rules do not say so. They should have an added line, something like "or at least 2 lines cross an Obstacle adjacent to the target". A line that crosses an obstacle in not blocked, it is to be considered clear. And the Cover rule entry does not explicit an exception to this.
@tox have you seen the LoS graphic at the end of the Reference Guide (the printed version)?? (If not) After seeing that: Isn't it clear enough? :3