I think a nuke would be to risky so close to the Fort, but some sort of other weapon would be cool. I see a situtation where Saul and Lizzy are espcaping the city just as the bomb is dropped in the background, ala The Millenium Falcon espcaing an exploding Death Star. I just now thought, and maybe it has been discussed, maybe the soliders are trying to find Zombie hot beds to then perform flyover bombings or attacks.
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