Nods to the other thread,
Assemble a group of no more than nine fictional characters to save the world from the Marvel Zombies apocalypse. The world they're protecting is Marvel-ish by default, but will stretch to accommodate anyone you pick (or have a different character entirely if the preponderance of your team suggests it, e.g., you've picked the JLA big seven plus the Wonder Twins). The power cap is at top-tier, though you may choose one character somewhat above it if you really, really want to.
The origins of the outbreak are disgustingly nebulous, so be prepared for anything from a spontaneous break to a random act of Sentry. Whatever the cause, your team will hook-up shortly after initial contact; plenty of time for individual members to protect their interests and resources, provided they act fast and it's at all within their means.
And since Morbius saving the day really doesn't work for us here, the zombies are still a mystery wrapped in a riddle, with no known treatment or cure unless your group comes by one via significantly more effort. They're also dialogued by Kirkman, so you may wish to terminate them with some prejudice.