Hi. I noticed a strange behavior with A.I in sins.
When having a big fleet that come upon me, my fleet + starbase start retaliating. But if ever
a "scout" come in my gravity well while fighting, my mobile starbase (using vasari) and some cap. ship (any race)
will aim the new comer instead of continuing the most important fight.
How to say... when fighting back some big fleet, the last thing i care about is some individual ship that come into my
gravity well... I have to manually retarget them to the main fight everytime 
Please look at it ...
P.s. : I didn't test if that have been corrected with the last week patch (I'm using entrenchment 1.02)