Joe, as for the Necromutant Rush - every army can be beaten easily, if it is too specialized - by another specialized army. The ranger-based Cap army would be wiped out by NR (especially an improved one - drop one squad of necros, add 3 or 4 Gommoreans), NR can be wiped out too... this is the reason I proposed army with Rangers and Sunsets - its a "generalist" army, which may survive such situations. It won't be perfect under every condition, but it relies on more than one trick.
The two navy armies from the last post are fine, although I'd drop the GLs from LI, add few more riflemen instead. GLs in LI hands are not too effective (poor RC).