zombies on RDR are defiently more fun than BO's their not scary at all lol!, I think RDR has more of a cartoony feel to it so its easier to just enjoy the game rather than scream "BREACH BREACH! OMG AHHH RUN AWAY!" down the mic...like i do on BO lol!!
to save my credability, im commenting on a game when i got a breach so i called out breach breach to my fellow players, turned around to see about 20 zombies behind me, they had all run away didnt tell me and left me alone in a room of broken down windows lol!!