Well now. This one should prove interesting. Normally Bruce and Clark are best friends. Here? It looks like something pretty crazy happened, like an Injustice Universe gone even more wrong (and that's saying something).
The fact that he can actually switch at will between his Doomsday's mode and his human form is awesome (and a great call back to Doomed, where SUperman could do the same). I also find it interesting that he thinks that spreading his virus to infect others is actually a way to help them and even save them from the dangers of the world, including Superman. I hadn't expected such subtle approach for the most bestial-looking of the Dark Knights.