Is the limit of drawing 4 cards per turn (or drawing 6 with that special ability) a limit on zombie players' hand size, or just a limit on how many you can draw per turn?
The reason I am asking is because in a (4-player) game I was playing today, the one zombie player decided he was done playing and ended the game early by just drawing all the zombie cards and not returning them (I think he had 3 or 4 zombie cards in his hand at the start of his turn, then drew the last 6 from the deck with the "draw 6" ability). We all thought that this was a major flaw of the game (especially because there isn't much that the players can do about that strategy; once you realize that the Zombie player wants to do that the best strategy is just to buy as many cheap cards as you can to build up your hand size so you can win) and we want to make sure we are playing it correctly.
They may draw up to 4 (or 6) cards in their hand. So it is a limit, if they still have 3 cards left in their hand from the turn before then they can only choose to draw 1 more card (or three cards with the Level6 zombie threat effect in play)