Welcome to the future, human...
The year is 2049. A year of future technology, arcologies, underground/underwater and aerial transcontinental superspeed rail systems, supercomputers, giant floating cities, underground and underwater human colonies and cities, and peace... for humans.
The humans have taken over the entire planet and are destroying the habitats of other creatures. For them, the future is bright...and for us... our future is bleak...
Unless we do something about it.
We are a species of sentient bacteria that have peacefully been living in underwater sulfur vents since the primordial age...
Now we have decided to rise after our food source-sulfur-has been exhausted and the humans have entered our territory. We are a too powerful species to be overtaken by you all. No, we don't plan to eat humans or even animals...
We want the humans' food. We wish to rule this planet and return equality to all-man and beast. We have already been living in their guts forever, but we have decided that we want human bodies for themselves.
We plan to take over the humans' minds and bodies and use them as our own to take over the world and enslave every species on earth- including viruses, other bacteria, and other microorganisms. We call this new species of human and bacteria... Homo Bacterium.
We have already made agreements with other bacterial species to help us carry out this task, however. We have chosen YOU as our human "ambassador" to assist us in this task...
Well human, what are you waiting for?
Notes: This disease uses the Necroa Virus plague template (Although these are bacteria).
***I will continuously update this scenario!***
Hello there, human. My name is Emperor Vladimir Sulfuran. We have chosen you to help us with our goal of taking back OUR Earth. We were once the dominant species on this planet before you humans came along. You humans have DESTROYED this planet and you KNOW IT. We WILL return peace!
I have introduced us to you. I think that was a... proper introduction. Anyway, we plan to take over-AHEM-bond the two species together as one. We already live in some humans. First, you will help us get in the others' bodies, then, we'll go from there. You will be rewarded. Do not fail. Good luck.
We can "ask" some viruses to help us revive some humans for our purposes. They will enter the heart and brain cells of the humans too allow them to resume normal bodily functions. This way, we can enter their bodies and turn them into the ultimate living beings - HOMO BACTERIUM.
We can take some of our soldiers and move them somewhere else. This way, we can conquer more lands and transform more of your species into ultimate lifeforms.