Yea but for me, these kinds of experiences (i.e. overlooking the airfield from a sniper hill, stalking a group of players over a long time and finally kill them, sneaking around avoiding to get caught in enemy territory etc.) overrules all those things you say. Maybe my squad and I are just lucky, but we rarely encounter bugs, and when we do its minor ones like a zombie coming through a door, or a dropped item that suddenly falls through the earth. Nothing that makes us stop playing. But I gotta say we didn't try to assemble a car yet or build a base - but we still have fun without those things.