I was thinking, if it were possible to add a new mission to the game, it should be this..... Saving the Tower. The game would start below the tower and features nearly every enemy on the game in swarms. You make your way to the top in a crumbling maze of rooms with who knows what lurking around each corner. Finally, you make it to the top of the tower which is under heavy attack from the ground AND air. Its a practical war zone scenario. This could be where The Stranger comes back into play and joins in the tower's defense.