General Zod and Doomsday are not the same. General Zod is a Kryptonian villain with his own distinct traits and motives, while Doomsday is a powerful and destructive creature. They have different origins and storylines in the comic universe.
In certain comic versions, Superman is forced to take the extreme measure of killing Zod due to the circumstances and threats posed. However, this action often has significant consequences for Superman's character development and moral conflicts.
In certain comic arcs, Superman was forced to take that extreme action against Zod due to the circumstances and threats posed. It was a complex and controversial moment in the comics.