The move was "bad for Britain" and marked Microsoft's "darkest day" in its four decades of working in the country, Brad Smith told the BBC. Although US and EU regulators have yet to decide on whether to approve the deal, the UK regulator the Competition and Markets Authority (CMA) said: "Activision is intertwined through different markets - it can't be separated for the UK. Mr Sutcliffe added that Mr Smith's comments about the UK were "somewhat redundant"