In all seriousness, almost all of these places that you posted, any player with any type of game sense will check, the first flash bang, you can easily avoid, as anyone moving through upper tunnels, will hear it bouncing and be able to look away before it flashes as it has about a second or two of air time, and believe me, that's more than enough time for someone to look away. While the smoke by B gate was okay, saying people don't really check there is far from correct. Another thing when you're on top of boxes that you jumped from window, if you hug the corner and walk backwards and to the right slowly, you'll drop off and be on an invisible ledge where when crouching, you can see their heads and they can only see the top of your head, instead of smoking yourself out, barely able to see them unless they're already on site or back of site. The last flash bang, I can't see working in anyone's favour, except for the enemy. The fact that you have to move so far up after throwing it to avoid flashing yourself, by the time they get flashed, even if they didn't push out of tunnels, they'll see you running up and that's an easy kill for them.