Some details about a trial being held largely in secret in the ACT Supreme Court can now be revealed after the court on Monday released heavily redacted transcripts.

Christopher Millington and Aofangatuku Langi, both 32, are on trial accused of breaking into the Kambah home of one-time Comanchero Alexander Miller on November 21, 2019.

Miller had recently patched over to the rival Nomads, the court heard.

It's alleged Mr Millington and Mr Langi shot at the bathroom where he was hiding with his girlfriend and then doused the home in petrol and set it on fire before fleeing.

Mr Millington has admitted the home invasion, but denied that he intended to endanger lives by lighting a fire.

He has also pleaded not guilty to a related charge of attempting to destroy or conceal evidence.

Mr Langi denies he was there at all and has pleaded not guilty to the home invasion, to endangering life by lighting a fire and discharging a loaded weapon.

The Crown opened a week ago before a jury but the court was closed to the public.

"The case is about ego, it's about reputation, it's about image and it's about revenge," Crown prosecutor Anthony WIlliamson said last Monday, according to the heavily redacted transcript.

Several fully redacted paragraphs follow before the transcript continues:

"Now, the Crown case is that shortly after Mr Miller patched over, he and his girlfriend, a Ms Natasha Rayner, were the victims of a violent home invasion."

Mr Langi was the sergeant-at-arms of the Comanchero at the time, the court heard.

"The Crown says that as such, it was ultimately the responsibility of the accused Langi to mete out discipline using violence upon Mr Miller for his sin of patching over," Mr Williamson said.

He told the jury that the accused pair were covertly recorded planning the attack and describing in graphic language how they wanted to bash Mr Miller and cut his fingers off.

The prosecutor pointed to two motives - punishment for patching over and revenge for an earlier torching of Mr Millington's car.

Mr Williamson said even though Mr Miller was a "seasoned criminal" he still had a right not to be protected by the law and not subjected to unsolicited acts of violence.

Defence barrister Jack Pappas, for Mr Langi, referenced a number one hit song from 1965 called It Ain't Necessarily So in his opening arguments.

"And that is what I want to say to you about the Crown opening," he continued.

"... ultimately, I'll be saying to you [Mr Langi's] just the man authorities came to blame for something that that he never done."

Mr Pappas said Mr Langi was a "bulky gentleman" and the jury would need to consider that when assessing the surveillance footage of the alleged intruders.

"You are not going to see in that CCTV footage some behemoth of a man like Mr Langi, even as he sits there now having lost quite a bit of weight in the intervening months," he said.

The Crown closed its case on Monday, after a week of evidence held mostly in closed court.

The jury is expected to hear closing arguments on Tuesday.

The trial continues before the jury and Justice David Mossop.

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