Good episode and...
Maybe it's a false impression but it seems that there are two different types of frigates in the NUNS fleet. One with a kind of 'standard' bow and one with the modified bow.
And other data, 8 billion = 8.000.0000.000 (Short scale) or 8 billion = 8.000.000.000.000 (Large scale or International System of Units)? using the international system, 8 billions seems an exaggeration