This already happened to me twice, failed to accomplished infected bounty. Always because of infected dog. The rate appearence of infected dogs is too low. Almost clear a section only to get 1/5 infected dogs. I don't know this is a bug or ingame setting but please devs could you fix that?
Low Rate Infected Dogs
Posted 11 April 2016 - 08:38 AM
I admit on higher levels infected dogs are kinda harder to get but not impossible. I'm lv55 and I still get them. As other said, they seem to be rare infected. I suggest using this martial law in the apocalypse book combined with making a lot of noise (bull in china shop book + noisy guns). I noticed that making a lot of noise also increases rare infected spawn rate. At least it happened in my case. Anyways, for me they mostly spawn on both - small street, street, but also in HERC parks and surprisingly in residences/large residences. To make bounties easier and if you don't have it yet, I also recommend to get yourself Union City Shortcuts -50% book.