Tobirama: I am going to use a strategy that anija never ever let me employ in battle.
T: And you are not going to tell him about it.
M: It cannot be worse than your meddling with death.
Tobirama gives him a look. The turns back to the border line. Teaming with approachers.
First he summons a tornado of water, wrapping around himself and then spurting towards the enemy. Waves after wave crashes down. Tobirama changes his hand signs and releases, all the water becomes ice. Everything living thing within it immobilized and trapped. All the trees, the animals and every last enemy. Then Tobirama gathers chakra through to his legs, leaps upward and over the the great glacier.
Madara sees where this is going. He could stop him. The sharingan flares to life to capture the white demon gracefully twisting in the air like a dancer, directing chakra to both feet, and smashing into the ice block. HARD. There are no screams, just cracking, snapping, creaking, shattering that builds, and then, what must be, a horrible death.
Tobirama lands softly like a cat next to Madara. And looks at him like he expects him to say something.
As they travel back to Konoha, Madara give gratitude that Hashirama doesn't allow blanket bloodshed. Without Sussanoo or something similar, there would be no surviving that.