having a hard time understanding this part of the writeup
7) As the TG commander, you need to be with the TG at all times. It is best that you do not fly combat sorties, but remain with the ships. However, you can fly as part of the Combat Air Patrol (CAP) that should be defending the TG from air attack. I recommend flying an SBD, TBM or D3a, circling the TG, flying in F3 mode. From here you can track the enemy attacks, observe torpedo threats and, when necessary, intercept low flying bombers and fighters. Just beware that friendly AI AA may shoot you down should you follow enemy aircraft into the defensive AA umbrella. Friendly manned AA cannot hurt your aircraft.
a side question if say I am in gv and I hit a friendly aircraft do I get damage?