This dream seems to be rich in symbolism and reflects themes of survival, protection, and courage in the face of adversity. Here are some interpretations of the key elements:

1. Running from something: This suggests a sense of urgency or fear in your waking life. It may represent avoidance of challenges or difficulties that you feel are threatening you or your loved ones.
2. The little brother: This can symbolize innocence or a part of yourself that you feel responsible for protecting. It indicates a strong bond and the instinct to shield those you care about from harm.
3. The RV and the awesome lady: The RV could represent a journey or a transient lifestyle, suggesting a need for freedom and exploration. The "awesome lady" may symbolize a mentor or a source of strength and guidance in your life.
4. Using guns and fighting back: This points to empowerment and a willingness to confront challenges head-on. The girl’s fearlessness with weapons may symbolize your inner strength and capability to defend yourself or take control of a situation.
5. Concentration camp: This is a powerful and disturbing image, possibly representing feelings of oppression, confinement, or fear of losing control over your life or circumstances.
6. Choices at the crossroads: The three road options reflect decision-making in your life. Each path represents different possibilities and outcomes. The fact that you chose left, based on advice from others, could indicate the importance of guidance from trusted friends or mentors in your decisions.
7. Escaping and evading capture: This highlights resourcefulness and resilience. You are finding ways to navigate difficult situations, which suggests you have the ability to overcome obstacles in your waking life.

Overall, this dream may be encouraging you to acknowledge your fears and confront them with courage. It suggests that you have the strength to protect yourself and those you care about, and that the choices you make can lead to freedom and new opportunities. Consider reflecting on any challenges you are currently facing and how you can approach them with the same bravery as in your dream.