Zombies(infected) reacting to sound 2:

[chssmius 12]

In older versions of DayZ the zombies(infected) would yell when they spotted/heard you and I actually like this feature and was sorry to see it go in 1.7.2. I think it should be reintroduced but be added as a gameplay dynamic. Not all zombies(infected) should yell, only the one that spotted/heard you. The one that spotted/heard you should always run after you (and be faster than you) so you are forced to react quickly. The other zombies in the area(suppose 50 meters) of the one that spotted/heard you should be alerted to your presence by the yell of the one that spotted/heard you (this is why only the one that actually spotted/heard you should yell). The one’s that were alerted by the yell should come after you at speeds in parity with how fast you can move. Combine this with ’Zombies(infected) reacting to sound 1’ above would make approaching a city by any means other than total stealth if you are alone or overwhelming firepower if you have a group would be folly.