We zoom on the open seas where a large siren forces is heading for the azur lane base only for them to being attacked by two gundams and these two are known as nu and unicorn gundam and this is how it went well

Flashback

Nu:im bored what do we do

Unicorn:lets go and destroy a siren armada nearby

Nu:but where can we find one

Providence:good you two are here we detected a large siren armada nearby this is the last one we have to face before we move on to fight the sirens in the final battle

Nu:what do you want us to do providence

Providence:you two will destroy this siren armada leave no survivors

Unicorn:as you wish come on Nu we have worked to do

Nu:lead the way

as they left the base we see back in the present this is how it went the battle

as the sirens opened fire on the gundams were ignoring this and used their weapons to destroy all of them as their mobile suits opened fire on the  last of the surviors another wave of enemy reinforcements arrivied and this is how it went

Nu:die you sirens using his funnels to snipe everything in its way

while also using his beam saber and beam rifle to kill more of the sirens

while unicorn enter its destroy mode and used his beam sabers to slice all of the sirens as the last of them fell they left the area with their mobile suits

all while the sirens were angry of losing another armada to these gundams what they didnt know is their end was coming to them and this time the gundams will be their executioners and as they said never fight a stronger enemy it will end worse for you

as the gundams prepared for the final battle which will decide who wins this war once and for all