Call of duty cold war broken

public zombies picks and chooses to load us in, private matches fail, so 2 of us play pc and 2 on xbox and its always 3 of us can get into a lobby so we have to keep switching hosts to just get in. when we finally load in people get kicked or lag out. if you pause the game sometimes peoples games remain paused and can no longer play after host unpauses. frame rate drops and rubber banding. when extracting/exfil zombies dont always spawn in and u run out of time and lose.