Did you guys adjust the outbreak achievement requirements? I just logged in to find a job that was in the 80s% was now 137% and doing it one more time completed it.
Yes when we released the latest city we lowered the required kills for the previous, to get the achievement you will just need to do the job once more.
Doh that sucks, I wish I hadn't started with the harder ones =/ I figured that's what happened, carry on.
Followup: Can someone tell if this happens if asking for help on an outbreak pushes your completed percentage over 100%?