I had to attend to an urgent personal matter so i had no choice but to afk, this should have been my first offence for competitive games.what kind of punishment would most likely i get?

Hey, I am a killjoy main and yesterday I played haven as killjoy and managed to detain everyone. I used the commonly known retake ultimate for a site, but this time I placed a nanoswarm at the beginning of the round, I placed the nanoswarm...