Played it...and well...it's a hard one, played on advanced and the infected are spawning bit too often and bit too many of them at one time, bit buggy aswell, got stuck behind rock and infected some times spawn in your room you spawn so they are hitting you before you can move and shoot them.
also, at least on that server me and some friends played on, there wasn't a health pack to pick up at all, and when the horde is constant like that and spawning that often it's not enjoyable to play.
Ofc, could've been the server that did that...for some reason the 2 servers we joined both had unlimited ammo on the weapons.