if you are using stock you wont see anything
if you are using GWX2.1 you will see the entire overlord invasion armada.
it will be formidable.
and there is absolutely
nothing you can do about it.
if you so much as fire a shot or even hang out in the area several destroyers will converge on you without mercy and depth charge you into oblivion.
and there is absolutely not one GD thing you will be able to do about it
except die.