Ok, its not a secret that NF need some support ships on battlefield.

How about expanding future Harbor Assault ship line? So far there is only 1 ship/
nation - APA. What I propsing is to put all support ships in this line - because doing
one BO for only APA ship is pointless. Now I will suggest few classes of ships. I doing
this from my memory so excuse me but example will be performed on IJN ships :)

@ lvl 30 APA ship -> @ lvl 35 seaplane tender -> @ lvl ~40 repair ship -> @ lvl 45
minelayer -> @ ~52 invasion fire support vessel.

Ok, so for example:

@ lvl 35 IJN will get IJN Mizuho (15000 ts displ, 25 scouts, 6 R slots, 28 kts)
@ lvl 40 IJN will get (whatever repair ship, dont remember names at the moment ;) )
@ lvl 45 IJN will get IJN Itsukishima (similiar as Mizuho except no 25 scouts, and ~
300 mines)
@ lvl 52 IJN will get IJN Settsu (22000 ts displ, 6 R slots for 12" Mod 1905, 22 kts)

Now I know mines are long way ahead, and repair ships perhaps too, but seaplane
tenders and fire support vessels could be added right now.

Seaplne tenders idea is similiar for all nations (except KM look below). 15-25 scouts
(IJN tenders carried most of all), 6-8 light guns and speed between 20-30 kts. (also
here IJN has the fastes ships). Seaplane tenders will need one more scout type
plane. For IJN H8K Emily, USN PBY Catalina, UK Short Sunderland and KM some
Dornier (forgot name :P). Point is: long range recon flying boat.

Minelayer, also few light guns, limited speed and between 300-500 mines.

Before everyone starting moanig about 6R slots on Settsu and compare it to Ise/
Fuso. Settsu was old dreadnought not existing in WWII. The point is to add such
ship for every nation where you can utilise useless guns (range). When ship is only
purely for shore invasion fire support, there is no need to have awesome range, and
also speed is another thing which hamper very much usefulness in anything else.

Perhaps USN will get USS Wyoming. 6 R slots too, and also 12" dual useless guns.
KM for example Kaiser class 5*2*12", and RN Dreadnought itself! The only problem
is with KM, because KM did not build single seaplane tender, but Im sure TNF will
make another super-uber ship for KM of their own deisgn :P

Support ships FTW!