In a comment on my last post Dan had asked about what those zombies might look like painted up. I found some mixed in to the horde from this ATZ game.
You can see the male zombie clearly interspersed with the 28mm figs. I think they blend in pretty well at 28mm if a little spindly by comparison. Like I said, a tad large for 1/72 but would work in a pinch.
By the way that game looked like a lot of fun. I am totally on board with letting characters jump back in after getting killed. There is no end to the zombie horde, so why not let people keep on swinging away.