So at least the Capcom released English Version of Wesker's Report II is addressed to Ada Wong.
Is there any point in the timelime when he could have sent her the report where he didn't trust her, and would intentionally send mis-information? I'm not that great on the timeline and evidence side of things. Maybe someone who knows everyone's motives can elaborate and explore the idea.
The whole Jake Muller thing and Wesker neglecting to mention the fact that he had a son has had me thinking about the relationship between the two lately...