My friends and I settled for the Romero mod. It removes special infected, and makes common infected slower and much stronger, so headshots are the only way to kill quick (hunting rifle takes 3 body shots to down a zombie for example). Also includes a weapon accuracy mod that makes things less accurate so it's more realistic, also removes ammo indicators and whatnot as well as music cues (incoming horde and stuff)
You wouldn't think it, but it was awesome. You can easily get overwhelmed without realizing it, especially when there's no music to warn you of incoming hordes. It's about as close as we could get to the Walking Dead experience, and it was really fun. The atmosphere was more tense and the gunplay and ammo changes naturally kept us from just spraying bullets and running around. Instead we'd move around slower and line up careful shots.
