Are target painters useful? In context, I'm running level 4 missions in my Drake without any real problems with the exception of DPS. It's pretty slow going on Battleships. Will bringing in a non-combat alt with Target Painter's help this at all?
mull
[ Editor ]
Target painters are useful when you are shooting at something with a sig radius smaller than your guns/missiles. If you are shooting cruise missiles at a cruiser then they will help a lot. In your case shooting heavy missiles at a battleship signature radius is not going to be a problem (a battleships sig radius is larger than the missiles).
Traditionally painters are used on cruise missile ravens while mission running to kill cruisers/frigs/etc. faster and with torps to shoot at basically anything smaller than a capital.
Less commonly they are used to increase the sig radius of smaller ships being shot at by any battleship sized guns (e.g. painting a hac or hic for a mega) or drakes and sometimes caracals to hit frigates for full damage.
When it comes to missiles the speed of the target needs to be taken into account (just because a frigate has a huge sig radius does not mean you will hit it for full damage if it is going faster then your missiles explosion velocity), for guns transversal velocity is the other thing that effects hit quality.

Please consider restructuring your title question to be more specific. You really don’t share much information with it the way it is, and it turns out the answer to your question contains the answer I needed. Because your title question is so vague, I almost created a new question for it.