I don't have Sleeper yet (can't be bothered finishing the quest, I hate Fusion Rifles and barely used Sleeper in D1), but I wouldn't say it needs a nerf. A more realistic fix would just be to not give invaders [i]literal wallhacks[/i] until the timer is halfway through. That would make it more of a "hunt or be hunted" situation, which would level the playing field a bit regardless of what equipment and subclass you use. [spoiler]I'd like to just have power weapons disabled outright while invading, but that's an extremely unrealistic expectation.[/spoiler]