Suicide Squad: Kill the Justice League throws the spotlight on the eponymous Task Force X as they do battle with mind-controlled versions of Superman and his allies, with plenty of characters having been confirmed. Unlike the Batman: Arkham games, it will take place outside of Gotham, giving the developer the chance to introduce characters from the wider DC Universe. This change in setting brings the Suicide Squad to Superman's home, Metropolis, and will see the ragtag group of supervillains and antiheroes taking on DC's primary superhero team, the Justice League, who seem to have fallen under the influence of Brainiac.
https://screenrant.com/suicide-squad-ktjl-characters-harley-quinn-superman-flash/