Smackdown vs Raw?

A few questions. 1: how do you superplex someone through a table? when i try it, the table moves. 2: a saw a video, a guy did a slingshot to another guy. But the guy was under a ladder that was horizontil in the corner, so insted of being thrown, the guy smashed head first into the ladder. how u do this? if anyone knows other cool weapon, interactive kind of stuff, please tell me.