Complex sentence: Boomerang is a gunfire locator developed by DARPA and BBN Technologies primarily for use against snipers on mobile vehicles such as the Humvee, Stryker, and MRAP combat vehicles.
Split into simpler sentences: Boomerang is a gunfire locator developed by DARPA and BBN Technologies primarily for use against snipers. Boomerand is mounted on mobile vehicles such as the Humvee, Stryker, and MRAP combat vehicles.