Bullet lag is a big problem, if everyone was lagging it wouldn't be too bad, as you learn to lead your aim and compensate. But it clearly makes the host a god, especially with the shotty, which is a very unfortunate exploit that is most apparent in ranked mode. Look for the guy that runs around with the shotty and makes no effort to ever pick up anything else, that is the host in ranked matches. Even with that said, there is still alot to enjoy and if your adaptable can still school most hosts far and away. By hit boxes I assume you mean targeting reticles outside of the aim mode, honestly it just takes time to adapt it's no big deal and you can use your health to aim if needed. Would it be nice to have one? Sure.