Jango, the perpetrator of the attempted assassination of Amidala, was an important figure in the Clone Wars plan.
He was hired by Lord Tyranus to provide genes for the production of clone troopers.
He was promised a large reward and made Boba, a pure clone without genetic manipulation, his son.
Emery and Omega were also born in the process. Like Boba, they were not genetically manipulated.
Jango signed a long-term contract with the Kamino government and was supposed to continue providing genes.
He was aware that the purpose of the clone army was to supply it to the Republic, but his true employer was Lord Tyranus.
In fact, Jango knows the true identity of Lord Tyranus. In other words, he understands that Count Dooku is involved in the production of the army of the Republic, which is supposed to be the enemy.
He does not tell this to the Kaminoans. This is why he kept Lord Tyranus' true identity a secret.
In other words, he is a person who can demonstrate the manipulation of the Sith who are on both sides.
Dooku also hires Jango to carry out the assassination of Amidala.
But things go wrong. To make matters worse, the Jedi start an investigation, and Obi-Wan comes to Kamino. Thus, the existence of the clone army is revealed to the Jedi and the Republic, but Jango is about to be taken away as a suspect in the assassination of Amidala.
Jango himself seems to have realized that this is not good, so he escapes to Geonosis where Dooku is.
Obi-Wan follows him and notices the presence of the droid army.
Dooku captures Obi-Wan and denies Jango.
Thus, the Sith's plan has made great progress. The Sith are on both sides, but at the same time, the Jedi are on both sides. By the way, Dooku is a former Jedi.
Yoda wanted to capture Jango to investigate these events and developments.
But Mace kills Jango. It became impossible for the Jedi to quickly unravel the mysterious Sith's plan.
Strangely, towards the end of the war, the Jedi discover the true identity of Lord Tyranus. It all started with the reception of a distress signal from Sifo-Dyas.
They discovered that Dooku was involved in the creation of the clone army.
The Jedi began to understand that both camps were being assisted by the Sith, and the search for Darth Sidious progressed.
Yoda believed that Sidious was behind Dooku and giving him orders.
Yoda reported this to Palpatine.
Although they ended up killing Jango, the Jedi were able to find out what Jango knew.
But it was too late, and it was all for naught when Sidious found out.
Sidious believed that if Jango had not been killed by the Jedi or fallen into their hands, the Kamino government's contract would have gone through.
Jango continued to provide genes to the Kamino government, so his genes would not have deteriorated in the creation of the clone troopers. What a shame.
In the first place, it was Tyranus' fault for hiring Jango to assassinate Amidala.
If Obi-Wan hadn't followed Jango to Kamino, the Jedi and the Republic would not have noticed the existence of the clone army.
But in the end, he would have ordered Tyranus to have the Kamino government inform the Jedi of the existence of the clone army. After all, the client was the Jedi. The Kamino government would have delivered the product to the Republic.
If the Empire could capture the remaining Boba, Omega, and Emery, they would have been able to recreate Jango Fett's genes. But Dr. Hemlock was unable to capture Boba.
If the Empire had captured Jango alive, they would have inherited the contract between the Kamino government and the Republic. Tipoca City would not have been destroyed. The clone army would have continued to be the Empire's main force.
The question Jango was wondering was why Tyranus didn't choose a Force-sensitive person to be the original clone instead of Jango himself. The idea of applying midichlorians to all the clones was intriguing to the Kaminoans, but it seemed to have many drawbacks for the Sith Lords.