From: Winnipeg, MB
I have read that DP guns protect the whole task force, while AAA guns just protect the ship they are located on...
There is no separate DP combat routine. A DP device operates under the flak routines when used in an surface-air role, and the naval gun routines when used in a surface-surface role.
Ah okay understood! It was something I read on a forum post from long ago, I may have even misread it.
As for the two task forces, would it be better to merge them? I understand this would be very circumstantial, but if I wanted a "Cover" force, would the AA values of this cover force still protect the followed TF?
The follow setting of 0 just means the TF is in the same hex - which is 40 NM wide. TFs would likely never travel so close to each other that they could share AA support. Even within the same TF, AA support from other ships depends on gun range, the direction the guns face, the altitude of the enemy aircraft and perhaps weather.
You may have seen something about ships in port getting some support from the base AA, and DP guns would be part of that.
No matter how bad a situation is, you can always make it worse. - Chris Hadfield : An Astronaut's Guide To Life On Earth