Ok, guys, I've edited the OP post to put in there some reminder on cover rules, since yes, all those gray circles are actual, tall columns that block line of sight and effect if they are in the way.
I've put in infos on monsters for those who rolled monster knowledge checks, too. Like before, I did not write the actual powers of the monsters, but useful tidbits of info that can give an idea of what it can do.
Now I'll roll monster initiative (and it's going to take a while... it's 20 monsters total in there) and then round 1 can start!