I was doing some thinking, and I'm not so sure the new rules really depowered ordnance fleets so much.
Seems to me things will go about like this:
Turn 1a - I launch & move my ordnance
Turn 1b - I move my ordnance again, this time making contact with the enemy
Turn 2a - Shooting phase I reload ordnance, then launch & move in the Ordnance phase.
Turn 2b - As Turn 1b above
We're still pumping out the same number of markers in total. About the only thing we can't do is stockpile ordnance markers.