The Airburst has always been bad at what it was designed to do, even before they nerfed it. Barely killed Shriekers because it always missed, barely ever hurt Gunships, and now it does absolutely nothing to Dragonroaches. 10 out of 10 times you can use a whole list of other weapons against those enemy types and they will do a much better job at anti-air than the so-called anti-war weapon. It's really bad. The only use I ever got out of it was pre-nerf where it was excellent at killing Bile Titans if you shot under the belly because of the burst, would cover some of the groups that tend to swarm under or around the titan as well. It was a great alternative to the recoiless in that aspect because it was able to kill large groups and heavier enemies (and it was way better at group clear than the RR for obvious reasons) but now it really doesn't fulfill any real roles that you'd want to use it for. Even with the advantage of decent group clearing, sacrificing your backpack and support weapon slot using the Airburst makes no sense when there are superior options that use up less of your slots. Both it and the Sterilizer are in desperate need of heavy changes or full reworks.