CS2 nades: pick a map
Smokes, flashes and molotovs by map - position, aim, throw.
Mirage 8 lineups Core Mid smokes and the A execute - every match starts here. 
Inferno 0 lineups Banana and executes on both sites: smokes, molotovs, flashes. 
Dust2 0 lineups The classic: Xbox, Long and the fast B through Tunnels. 
Nuke 0 lineups Two floors: Outside smokes and Ramp control. 
Ancient 0 lineups Mid control and smoke executes on both sites. 
Anubis 0 lineups Water, Mid and fast hits on A and B. 
Train 0 lineups Wagons and long sightlines - smokes decide everything.