Tivia Plays Delta Strike
Delta Strike was established in 2004, founded by Doug Willems and David Lowe. Generations of the gear including Revolution Pro, Evolution Pro and Evolution FEC precede the latest version called Genesis that takes the elongated phaser design into a sleeker style of pack that wears like a vest and is vibrantly lit, for use in arenas with a wide array of optional added elements including video bases, energy gates and smart targets.
I've enjoyed playing Delta Strike in a number of arenas. From a one shot, three shot or typical energy depletion game they have all been a lot of fun. This system seems to blend a variety of elements I enjoy and my favorite games incorporate some of their additional components.