How to fight against strong enemy

Talking about teamwork, I remembered my favorite game- World of Tanks. Its pace not so fast but it need more brains to thinking, like strategy. I just had seen a game match on YouTube, it just amazing to me. Facing all of those strong teams even the best in the world, what you gonna do to against them? I often remind myself that armory is not the most powerful weapon in this world, human mind is. Try every possible imagination before match, keep practicing with teammates, and find out every single point of importance. Keep doing these could make your team powerful but it still missed something- the creation. Human's brain is brilliant and that's how the Na'vi become the best team in the world.