It occurred to me that I posted this without explaining the reason why I’m asking for these details. There are several. One, this kind of establishes the mythos of each character, and allows you as players to explore what the voice of the character may be. Two, these summaries provide a brief window into what you as players are interested in seeing in the character’s adventures. Third, they may highlight some aspect of your character you want to focus on, or may not have realized was important to your character. Finally, it gives me as the GM a way of identifying elements for future stories.
Example: Crossfire – Trapped in the Manhattan mall during the Zo’s invasion Specialist Mark Jones is cut off from his team and his tools. Worse, the building is filling with smoke, and alien troops who are rounding up survivors. Taking the only things he can find, a bow and an urban camo vest and mask, from a demolished sports shop Crossfire takes to action to help save those – Locked Away!
Okay, yes, I do picture Locked Away as the title on the Crossfire issue #0, but that’s just me being a bit silly. In this synopsis we can see that Crossfire has a military background and uses a bow. What may be more interesting though is that he is wildly outmatched being a normal human versus an alien invasion force. Additionally, he is not taking up arms to defend himself but to save others. While it is not stated, this implies that he may be rather stealthy and could have escaped but chose the path of a hero instead.
As a GM I might suggest Crossfire add Drives like: Facing Overwhelming Odds, or Wrong Place, Write Time. Also, I can see that while it might be in every story, I should consider putting Crossfire into situations where he is completely outmatched and has to rely on things other than raw power to overcome the challenge.