Just checking out how the subclasses work

I know this is a bit slowpoke, but i just wanted to be sure if this is how the subclasses are meant to work:

Vanguards are tanks that push foward to break the enemy "wall" so their team can murder the enemy marksmen.

Wardens are tanks that protect their marksman so they can outlive the enemy marksmen.

Juggernauts are fighters that slowly and steadly murder everyone that stands betwen them and the enemy marksmen.

Divers are fighters that dive deep into the enemy team to murder the enemy marksmen.

Assassins are slayers that have the ability murder the enemy marksmen before the teamfight begin.

Skirmishers are slayers with hight sustained damage that clean up the low-hp enemies before murdering the enemy marksmen.

Burst Mages are mages that can murder the enemy marksmen before they can flash away.

Battle Mages are mages that actually have to step into the team fight in order to murder the enemy marksmen.

Artillery are mages that can murder the enemy marksmen from the back-line.

Enchanters are the controllers that enhance the power of their own marksmen so they can outlive the enemy marksmen.

Catchers are controllers that isolate the enemy marksmen from their team in order to get them murdered.

Marksmen are the guys/gals that, if they survived long enough, duel the enemy marksmen after the teamfight is over and everybody else is dead.

Unique Playstyle Champs are the ones that use a different play-pattern from above to murder the enemy marksmen.

Is that right?