No Tore is probably right:
From Wikipedia, the free encyclopedia:
A multiple rocket launcher (MRL) is a type of unguided rocket artillery system. Like other rocket artillery, multiple rocket launchers are less accurate and have a much lower rate of fire than batteries of traditional artillery guns. However, they have the capability of simultaneously dropping many hundreds of kilograms of explosive, with devastating effect.
...but as alongs as they wil have more firepower in 1.3 I dont really care what it means