But since it does exactly what you say, requires no skill, why not just remove it from people invading. Maybe you should have to require some skill to get kills. Also it's not really fair since the sleeper ricochets off walls its basically impossible to not get hit by it.

I don't have that much of a problem with the sleeper. I don't ever use on invading/invasion, however I feel it has too much range.1 shot 1 kill doesn't feel wrong- it's an exotic fusion type however I have only dodge it's shot a few times,but when they're across the map almost beyond sniper range 1s1k is too much. Really the only weapon capable of that would be a sniper rifle,and using a sniper rifle you need to precession shot to get the job done.

Rocket launcher with high velocity. Whisper o the worm. Bite of the Fox. Chaperone Use cover and concealment to seek and destroy the sleeper. Lots of people use it but only a smaller percentage are good enough to use it in CQB.