Kylo Ren's personal squadron was a starfighter squadron of the First Order, with Kylo Ren at its helm. The members of this squadron flew TIE/sf space superiority fighters, while Ren himself piloted a TIE/vn space superiority fighter called the TIE silencer. During the war between the First Order and the Resistance, Ren's squadron spearheaded the opening attack against the Resistance fleet.
The dark warrior successfully breached the defenses of the Raddus and obliterated the hangar, killing a number of Resistance pilots, including Tallissan Lintra. However, he couldn't bring himself to attack the MC85 Star Cruiser's bridge because his mother, General Leia Organa, was present. Lieutenant Poldin LeHuse, his less conflicted wingman, didn't hesitate to target the vulnerable bridge, which resulted in the destruction of the Resistance High Command, with the exception of Organa, who survived the vacuum of space thanks to the Force.
After their attack on the Resistance flagship was complete, General Armitage Hux ordered Ren's squadron back to the Mega-class Star Dreadnought Supremacy. Ren managed to return to the dreadnought, but LeHuse and another wingman were shot down by the Free Virgillia-class Bunkerbuster Ninka.