Amazing!
I like this game!
The release Infectonator before Necronator is a real boost IMO, for me it's a good marketing strategy to do it.
Since this is a strategy game i would expect something lazier the way I should be a general. I would prefer to have a team grouping to actually make divisions for easier navigation when the mob is crazier. It'll also make people not to depend on making a mouse drag, giving you and players the advantage if the game getting laggy (in which it can't be helped for players with low spec computers).
I would rate this game 13/15; since the limit is 10, then, 10 it is! :D