My understanding was that SWATting means someone calls the police and says that you have a bomb in your house or something to that effect. I imagine that the SWAT team breaks down your door and arrest you and everyone else in the household.
Soon enough, they must realize that you are all good, right? SWATting is common enough that they must be aware of it and take it into account. If they started arresting and prosecuting people who were victims of SWATting, there would be big court cases against the police.
To clarify, I am not trying to underplay what you went through. I just want to understand what you went through that made you describe it as "hell".
Also that SWAT team isn't just going to come in, realize you're not armed, and laugh at the situation before letting you go. For all they know, you are as dangerous as the person who called in said and were just putting on an act when you saw the SWAT team roll up. So now you're at least going to deal with questioning which is going to be extremely difficult to deal with in a state of panic and confusion.
And no, it's very unlikely that the SWAT team would be held responsible for anything. Police have too much protection against that. To spin it for them, they were operating in good faith on the assumption that they needed to raid the house in the manner they did otherwise people would die.
https://en.wikipedia.org/wiki/2017_Wichita_swatting
https://www.nbcnews.com/news/us-news/tennessee-man-targeted-...
That's a bad way of phrasing it. Shooting the dog is POLICY. The very first thing they do.