Hunt said he was showing them how to protect VIPs while travelling in a convoy.
"That's how we move on the roads in the Middle East. It shows how we move in a convoy, nose to tail.''
The video also shows Mr Hunt with a stick. He said he was demonstrating how he used a mirror to check underneath vehicles for explosives.
He was asked if he was teaching the people how to take a hostage.
"In my whole career, I have never been shown how to snatch a person so I couldn't show how to do it,'' he responded.
He said he was asked to return to the camp on another occasion but said he "wasn't keen''.
"It wasn't in my interests, it was a waste of my time. Nobody had the skills to pursue a career in the security industry.''
Under cross-examination from Crown prosecutor Ross Burns, Mr Hunt said he thought it was "unusual'' that some of the participants wore balaclavas and scarves to hide their face.
Earlier, the jurors heard from Iti's lawyer Russell Fairbrother who opened the case for the defence of his client.
He said Iti had a history of protest that was about changing "hearts and minds'' through peaceful activism - not violence.
He told the court it was "ludicrous'' that someone who had campaigned peacefully for change would turn around and use violence.
"His career as an activist was not to cause mayhem but to change hearts and minds of the people he interacts with.''
The jurors also heard from defence witness Paul McHugh, an expert in customary rights and a Reader in Law at Cambridge University.
Giving evidence via videolink from London, Dr McHugh said one of the ways constitutions were changed was through activists who raised questions that might not otherwise be thought of.
He said Iti was one of those activists.
Under cross-examination from Mr Burns, Dr McHugh was asked about Iti's "private activism'' which had been captured by police cameras.
Dr McHugh said he had not seen the footage.
Justice Rodney Hansen also asked Dr McHugh about Iti's activism and how it was perceived by pakeha.
Dr McHugh said anyone who had been on to a marae had received a haka or challenge and some pakeha were better at understanding and acknowledging that challenge.
"Others don't know Maori culture and react fearfully.''
He said Iti had allowed that misunderstanding to take place as a way of showing that there was a culture gap and that it was not for Maori to bridge but for pakeha.
The trial has adjourned for the day.
THE CASE SO FAR
* 88 witnesses for the Crown were to be called, however after arrangements with the defence only about half appeared
* Four witnesses are to be called for Tame Iti, two of who have already given evidence
* The trial was set down for three months but Justice Hansen has told the jurors it could finish as early as late next week.