Kou's GP01 pursued Gato's GP02, which had fired an atomic bazooka.
Captain Banning's sacrifice allowed them to sense the movements of the Delaz Fleet.
The Albion team continued to pursue Gato, but in the worst-case scenario where they couldn't stop him, both mobile suits ended up destroying each other in a mutual destruction, ending the rematch.
Lieutenant Kou Uraki x Gundam GP01 Full Burnern
Major Anavel Gato x Gundam GP02 Physalis

Can you hear me, Gato! | おうせい/ゆうせい's Gunpla works