"A Liar" (Leon Scott Kennedy X Reader/oc???)

so i've been wanting to make a leon fanfic for so long ever since i had a dream about him. so this is how it'll go
don't read if you don't like spoilers
first half of the story takes place in re2 when the main character(reader) is undercover with ada wong as fbi agents. reader meets leon kennedy and they embarg in a lovely friendship however near the end of it all leon finds out the truth reader and ada being traitors working under umbrella. reader holds the formula...it drops and she drops with it.
second part to the story takes place in re4 just before the search for ashley. reader is seen getting in trouble by the umbrella inc. an argument beginning within ada wong and reader.
reader begins her leave. she removes herself from the team and joins what seems to be a secret us government program, she was given a tough job later on. to find the leading to las plaguas. however this lead to reader and leon meeting again
what happpens after is up to the future