Earth's Special Forces, also known as ESF is a Half-Life modification based on the hit anime series, Dragonball Z. The mod includes nine of your favorite characters who are able to duke it out using numerous beam attacks as well as close hand to hand combat. ESF mixes both elements to bring players intense fast paced with a twist of strategy. Each character is geared towards a different style of play. Some are meant to mainly use energy attacks, while others have the advantage in melee fights.