Updated the OP with some rules and tips.
RULES & TIPS
It is not compulsory to participate in all of the Investigation Missions. After all, participating in the mission does not guarantee you with investigation rights anyway so you can sit out for a mission if you're busy or when you find it too difficult.
Good news, there will be no eliminations in this tournament!
There's no way you can win all the missions, so... find yourself an alliance! Also, don't forget about the Elite Eye bonus. That feature was basically made for alliances to happen.