who is ada wong in resident evil 4?

Question

is she a nut case

Answer 1

ada wong was a character that leon meets in resident evil 2, she supposivly died when she fell from the catwalk.

Answer 2

she is a useful woman in the game,working with weasker "a person appeared in resident evil code veronica-X."
she will help Leon in the game and u will know exactly how she helped him after u play and finish the extra game called "separate ways" and this extra game will be available after u finish the main game on any difficulty.

Answer 3

All you need to know is that leon owned her