Talk:Left 2 Die

I feel that we need some kind of explaination for infestestation and infested specialists, like what are they? Specialized & modified zerg creatures for the infestation? Or were they actually infested civilians warped and twisted and now rendered uncrecognizeable from their past appearance (Infested Abomination, Aberration) I'd just like to know due to the fact HotS included no info about infested rather than just using them as meat shields.