Ironically I find that silvers screech more about shitty team mates than any ither rank.
Just a few days ago had a 3000 CS rated dude losing his fucking mind at one of our team mates because he was bottom fragging, only for the angry dude to end up hard negative KD while still bitching
He's trying really hard for gold status okay! You don't understand the pain and stress he's going through to try and get there, and his teammate playing badly reflects directly on his physical gaming ability!!
I will spend hours and hours playing against expert bots until I can consistently be at the top of the leader board. Then I be ready to play against humans and rank at the bottom.
I have been playing CS since 1.6 and every time a I take a break I have to start all over again.
Those seem to work. The standard 1-3 make no difference that I can tell. They are still very very dumb, but at least they do not hesitate 5 sec to pull the trigger and can hit a target.