Can CW Sherloque Wells find out Mission Report, December 16, 1991?

he has seen civil war 37 times, he know the plot like the back of his hand

He'd not that smart through. The bloody comic relief was able to be a better detective than him. Hell, if we take the leaks into account he's just Eobard putting on a stupid accent and hiding in plain sight.

The only way Zemo found out was through prior connections and a burning desire to ruin the Avengers- a week with money isn't going to cut it.

No. Sherloque is a buffoon with very little actual detective feats. There's no reason to assume he could figure out an actually well hidden secret like Bucky's assassination records.