A big target, maybe, but they sure can put up a fight:
Blimp vs. U-boat | Defense Media Network
Although it has been said many times before, the HAV-304 is not an airship. It is heavier than air, so it does not need ballast, and only uses a mooring mast when on the ground for long periods. For shorter turnarounds it uses a suction system to hold it down, thus allowing visits to unprepared locations.
For the particular role it is being targetted, namely delivering large loads to unprepared sites in remote areas without road or runway access it has no equal, with the possible exception of, say a Mil-26, and its eye watering running costs.