Comics' Greatest World: Out of the Vortex #1 (1993)

The Army personnel at Cinnabar Flats are trained for combat situations, equipped to deal with the mutated super-humans in Block 13, and even used to monitoring the mysterious Vortex anomaly. But now something completely beyond their experience -- and their planet -- is tearing through the facility like a red-hot knife through butter, and everyone is running out of options fast. Just as this corner of the desert is starting to look like the dress rehearsal for the Apocalypse, a being of truly apocalyptic proportions steps out of The Vortex itself! Is he here to rescue humanity, or seal its destruction?