Breakthrough
This contract will become available after completing the campaign mission “A Wrench in the Works”. The convoy has well-protected vehicles and you have to immobilize them before they reach the destination. Take note that the targets must be knocked down – not killed. There are also blockers along the path they’re going to take so you can use them to neutralize the vehicles before they reach their destination. Once blocked, you can fire at their vehicles to force them out. From there, you can pick out the escorts one by one. Don’t hesitate to use lethal force against their escorts. After taking down both targets, the contract will be complete.
The exclusive contract is a mission you get when buying a special edition. There are many other "Exclusive Contract" missions other this one. There is the Palace Pack, Breakthrough Pack and many more. I suggest you make an entire new category called "Exclusive Contracts" and sort them by different packs. One of them (Palace Pack) adds a new investigation which should be added to that category