Yates and O'Callaghan did not fire the shots but the jury found them guilty on the basis they were parties to the offending.
Justice Graham Lang said O'Callaghan, an associate of the Tribesmen gang, was assaulted when he ended up with Black Power members on the evening of February 12, 2016.
A standoff occurred between two people, one armed with a tomahawk, and O'Callaghan who had a baseball bat to defend himself.
Justice Lang said O'Callaghan told Yates to call the person, who arrived and fired the shots.
O'Callaghan's lawyer Doug Blaikie said his client was confronted by two people and his kneejerk reaction was to call for help.
He said there was no evidence O'Callaghan knew the man who came to protect him had firearms.
The judge said Yates played a significant role in what transpired by calling the person to the scene.
Two witnesses saw her being on the phone and heard her saying: "Get down, he's got a gun".
She was sentenced to three years and four months jail. O'Callaghan was jailed for two years and he'll serve the sentence without parole.
The other person who has interim name suppression was sentenced to four years and one month jail.
