Simple scenario, the ammo system is scrapped from the game for all classes of units. They now have no ammunition, but they consume energy depending on their class, much like capital ship missile launchers.
I see a change in the PvP system as a whole, and a lot of 'missile-ships/fighters/bombers'. With countermeasures being unlimited too now, missile effectiveness is like a gamble, and a lot of CM spamming and missile spamming.
I'm unsure if fights will be quicker or slower with this.