Whos on first when it comes to firing?

[Gryphin]

Who fires first in simultaneous combat.
In a recent battle a warp point defended by sats and ships is attacked from the other side. The defenders ships open up and blow away several ships that the stack of sats could have knocked out. The 78 stats with 4 direct fire weapons each still had plenty of unused weapons when they finished off the Last ship within range.
If the sats had fired first the BattleCrUsers could have cleaned up what was left and then gone after ships further away.