Original sentence: In a recent gameplay trailer, a game mode called Firefight is shown, wherein players take on increasingly difficult waves of varied enemies, similar to the Horde mode featured in Gears of War 2.It will also include an open world environment, utilizing the old vehicles and weapons, and adding new features like more varied acrobatics for the Banshee
Edited sentence: In a recent gameplay trailer, a game mode called Firefight is shown, wherein players take on increasingly difficult waves of varied enemies.It will also include an open world environment