What could've been done differently to prevent the Locust War

Wdyt Marcus Fenix and/or Elain Fenix could have don't differently to stop the locust war from beginning, and make it so the Locust Horde and humanity coexisted peacefully.

Imo, Adam Fenix could've included other scientists when he was asked to kill the Lambent so that he was able to more quickly and Myrrah wouldn't have to attack the surface to escape. That or he just full on introduces them to the surface(with permission from Myrrah) so that all of humanity can help the Locust win the war and find a cure