The civilopedia entry states that the rocket artillery does not need to set-up prior to firing. Yet it seems in my games it needs to, just as any other artillery unit.
Is the civilopedia entry wrong?
According to this and this answers on the 2k forums, Rocket Artillery built in a city does not need to "set up" prior to firing. However, if you upgraded an old unit (artillery) to a R.A. it will still need to "set up" prior to firing.