its not that its too difficult its that you need teamwork. its hard to get randoms to cooperate once in a while. There are a few things that need to be tweaked at some point soon to make it more playable.Personally i would rarely if ever play pvp. i prefer bots for teamwork and comradery
I myself want to play on server #2. What I meant was that server remains empty because new players are not able to pull team work and hence they get intimidated by the difficulty level.