Well, you know what I'm talking about - the way a smoke nade is like in every other game and IRL.
Dense, opaque smoke that is dangerous to walk through...that can conceal a plant or a defuse. That you have to respect instead of doing a yolo stewie flash and running through.

Right now smokes are more of spherical vision blockers, which don't really allow you to sneak by an enemy that is also inside, and doesn't cloud your vision as you pass through the edge.
Is there a reason why we can't have a real smoke?
Of course, I imagine that it will require some lineups instead of dropping from the sky...