Beth is quite the good shot. Lord.
Yeah the timeline of this could go a couple different ways, but i think Beth has been there plenty long enough to get this to present time. They had her doing some stuff she obviously would have needed some training for.
And i think Carol got nabbed on purpose.
Beth also was lucky to snatch a handgun with infinite ammo.
Timeline much easier to explain that all those mowed lawns.
I think Carol was NOT nabbed on purpose. She's not James Bond, she just got lucky with a bottle rocket once and now everyone thinks she's Rambo.