Rocket Launcher. The Rocket Launcher in Boom Beach is the 7th of eight main types of defensive buildings and is available from the 13th level of Headquarters. It shoots a volley from six missiles in series one after another. The pause between volleys is 5 seconds (time for reloading). The Rocket Launcher has the biggest range of fire in compare with other defensive weapons. The damage power is relatively small but it increases after each upgrade. Distinctive feature of the Rocket Launcher is ability to cause damage for group of enemy troops (an every unit gets damage near explosion of missile). It is an excellent means of defense against Rifleman, Zooka, Grenadier, Cryoneer and Warrior. Less effective against units with big stock of health.. There are many kinds of Buildings in Boom Beach, all with their own specific abilities. All types are listed and explained on this page.. All available Defensive Buildings in Boom Beach are listed and explained on this page..