Gunnery Team

If an attack is performed against one or more squadrons, the [concentrate fire] command must be resolved while attacking the last squadron in that attack in order to then be able to resolve the effect of Gunnery Team.

Reference

The second paragraph of this card is a permanent effect regardless of the [Concentrate Fire] command being resolved.

As per RRG, a ship can only attack once from a selected hull zone, however Gunnery Team allow a ship to attack more than once from a selected hull zone, however it cannot select the same target again regardless of other upgrades or card abilities unless otherwise stated.

If a ship is equipped with Gunnery Team, Admiral Ackbar’s ability may apply to both attacks performed from the same hull zone.

If either player’s objective ship in the objective Advanced Gunnery is equipped with Gunnery Team and attacks from the same hull zone during its activation, that ship cannot target the same ship or squadron more than once during its activation. But can target it with a different hull zone.

Ordnance Pods, nor Impetuous, are able to attack a target already attacked by a ship equipped with Gunnery Team from the same hullzone.

A ship equipped with Slaved Turrets and Gunnery Team can still only attack once.

Keep in mind the interactions between Salvo and the upgrade card Gunnery Team and the objective Advanced Gunnery.

How does Gunnery Team interact with Salvo and Quad Laser Turrets?

As per the card, “that hull zone cannot target the same ship or squadron more than once during that activation”. Meaning if an enemy ship or squadron attacks the same hull zone twice during “their” activation, you would be unable to Salvo or QLT that same target twice. You would only be able to attack them once.