The teams and the location were chosen randomly.
Location: Yellow River, China(it's full of clay and mud)
They start at 5 kilometres from each other. They can use every resource in the location and they can use the environment to hide or in any other way they want.
The teams have got 5 minutes of preparation time, they know what is the location, but they know only what abilities the other team has(for example, they will know that Daredevil has got enhanced senses, Mera has got powers related to water, Black Panther is a great martial artist etc.).
Win by death, KO or incapacitation.
Morals on, in character.