Nolan movie Batman
Watchmen movie Rorschach and Comedian
Both teams using standard gear and suits. However, neither side starts with any projectile weapons. They are allowed to use projectiles, but only stuff they can get from their surroundings. ("projectile weapons" here is defined as: something that can be thrown or fired and impacts directly on an opponent causing damage. Smoke bombs, etc, are allowed)
Battle takes place in an abandoned warehouse with crates and random stuff lying around. They start 5m apart.