I need help, why biohazard series don't ...

I really loves biohazard series. But I can just understand part of the plot because there is no caption with CG, Why capcom always don't add subtitles to CG. Did anyone can find english script of BIO 0,1,2,3,4 ,veronica. It will be highly appreciated!My E_Mail: superairlike@hotmail.com also my msn account.