https://www.youtube.com/watch?v=TQHHe0EgJBs&Gunner + Tech + Recon combo works better on most missions, Human Tanks and Ammo Hoarder are the best cards to use. Superior Firepower and Extraordinary Weaponry can help too but it is possible to beat some missions without any cards to help as I did it but its not like you need those good cards for anything else on this, use it for Insane. Missions 1-3, 3-2 and 4-1 are the worst ones. Will be posting the next videos in the next days.
