Right now it is the only option, you hurt your team if you don't use it to either invade or kill invaders. Getting killed across the map before you even have a chance to see where the invader is coming from is just dumb. No one is using anything other than sleeper to invade and this kills the potential of the game mode. People aren't trying to get kills with any other type of weapon and I feel that is not what was intended when the game mode was developed. Either change it so it's not a one shot body shot or remove the invader being able to see the other team in real time.