Let's see...
The Hydran Iroquios NCF (sitting on my desktop because I recently completed the Unity edition of Distant Armada) must lose two weapons when it first takes a weapon hit (the number on the track drops from 15 to 13). You could choose two Phaser-1s, because their loss limit is (2). Likewise, you could choose two Phaser-2s. However, you could not choose two Phaser-Gs, as this would exceed the loss limit. You could choose one Phaser-G, but a second could not be chosen until all other batteries have met their loss limits (i.e. two Phaser-1s, two Phaser-2s, one Hellbore Cannon, and two tractor beams).
The point is to ensure players don't lose all of their weaker weapons before losing any of the more powerful ones.
Daniel Kast
Majestic Twelve Games
cricket@mj12games.com