Turns the once peaceful biters into different factions, warring for domination over Nauvis alongside the player. They will fight amongst themselves for land.
This worked for me in console:
/c for F in pairs(game.forces) do game.player.print(F) end
/c game.forces['player'].set_cease_fire('Team1', true)
/c game.forces['Team1'].set_cease_fire('player', true)
where Team1 is your favorite Biter group from the list that pops up (eg Biter_Faction_1). Credit to scad.luncher's Steam guide for the reference.