"The purpose was to equip them to kidnap people, commit acts of sabotage and combat - for want of a better word, guerrilla warfare," he told the jury.
One of the videos played to the jury shows a group of people getting out of a four-wheel-drive vehicle.
One man can be seen crouching behind the bonnet with a rifle at his shoulder. Several other people rush out of the car and run off screen. "It's really hard to see any lawful purpose for that kind of exercise," Mr Burns said.
Other videos show people wearing balaclavas walking through the bush. Some are armed with guns.
"You might wonder why they're hiding [their faces] from each other if they think that what they're doing is lawful," Mr Burns said.
He said two police officers pretending to jog through the area after a training session found an old stove that had been used for target practice.
The videos were released to the media after legal arguments in closed court on Monday.
Mr Burns said Iti was the organiser, the "common thread", and had a Plan A and a Plan B. "Plan A on the face of it seems to be negotiation. If negotiation was not successful, he would resort to Plan B and that is what the revolutionary military wing training was for."
He said an intercepted conversation from Iti's computer captured Iti talking to another man about a "revolutionary military wing of Aotearoa".
Another conversation attributed to Iti said: "We're planning to war if we have to."
Signer's lawyer, Christopher Stevenson, questioned police actions. "What was the motivation in New Zealand at the time? Serious violent offences? You are going to have to decide if that proposition is fact or in the realm of the fantastical and suspicion."
He said his client lived with Bailey at the Parihaka settlement in Taranaki. The area is known for its passive resistance movement in the 1880s.
Iti's lawyer, Russell Fairbrother, also drew on history and asked the jury to remember Tuhoe's history. He said that in 1866 a large number of Tuhoe people were dispossessed of their lands by the Crown.
He said it was on the confiscation line that armed police held up schoolchildren in the Ruatoki raid in 2007.
Mr Fairbrother said the intercepted computer conversation referred to by the Crown was signed off with a term of endearment usually used by men and women.
"I don't know who was using the computer, but I'll be inviting you to conclude it was not Tame Iti."
The trial continues.
