Forum:Nobleman of Extermination

If i have no cards on the field, and I activate Nobleman of Extermination, and select a face-down Spell/Trap on opponent's field can the opponent chain the card lets say it's a Raigeki Break, Can the opponent activate it to destroy nobleman of extermination?

Also similar situation but instead I used Bait Doll can the opponent is forced to play Raigeki Break even though there's no target other than raigeki break it self and Bait doll... and if opponent have a monster will he be forced to select the monster as a target?