Armored Personal Carrier. I think the APC is located where you find the Warden Crossbow.
Autoimmune diseases arise from an overactive immune response of the body against substances and tissues normally present in the body. In other words, the body actually attacks its own cells. An immune disorder is when the body cannot defend itself. [ Source: http://www.chacha ....n immune disorder is when the body cannot defend itself. [ Source: http://www.chacha.com/question/what-is-the-difference-between-immune-disorders-and-autoimmune-diseases ]. More Answers to  What is the difference between immune disorders and autoimmune diseases .
Autoimmune Disease: Causes, Types, Symptoms, and Treatments. Commonly asked questions about autoimmune disease. What is autoimmune disease? What are the types of autoimmune disease? What causes autoimmune disease? What risk factors attribute to autoimmune disease? What are the signs/symptoms of autoimmune disease? Is autoimmune disease curable?