I meant to get the character creation stuff up already, but I realized what I had was kind of dull, so took it apart to rewrite.
Here's what it will likely look like:
Every squad member will have an Origin roll similar to Five Parsecs, determining where they came from in the setting.
The second roll will determine their Training. This may involve actual military training or, more likely, being part of some group surviving in the wilderness. They may have been an ash merchant, hung with a nomad gang etc.
These will be similar to the tables in Five Parsecs, offering various stats and benefits.
The third table will be an Event table, quite a bit longer than the other two.
Depending on "experience" a starting character may roll 1-3 times here, while brand new "scrubs" won't roll at all.
The results here will give you things that happened to the character. They were in a big battle, found something cool, almost got eaten by a monster.
Some things will add benefits, some may add a penalty, some will just be for flavor.