and as of today, they sTILL have no amunition foir the main guns...
In November 2016, the Navy moved to cancel procurement of the LRLAP, citing per-shell cost increases to $800,000–$1 million resulting from trimming of total ship numbers of the class. The Navy is monitoring research on alternative munitions, but since the AGS was tailor-made to use the LRLAP, modifications will be needed to accept different shells, which is unlikely to happen by the time the first Zumwalt vessel enters operational service in 2018, leaving it unable to fulfill the naval gunfire support role it was designed for.[73][74][75]
It gets worse. They had software issues where the missiles on board could not be reliably launched and the small arms lockers couldn’t be used due to some fault I cant recall. There are privately owned fishing boats in Texas with more effective firepower than a Zumwalt.