And NO, Control can't be M or Q as they are MI6 where Control is American.
And McCall is NOT Solo as Solo is American. Solo retired, moved to London and became Albert Stroller (think about it)
As someone will bring it up - this is set after the Connery Bond retires. Moore was still Bond in London when Equalizer was setting up in New York. In this version, "James Bond 007" is the alias used by that agent at that time. When "Connery" retires and moves to New York, "Moore" becomes Bond. (Forgetting about Lazenby of course). So maybe Robert McCall (a Scottish name) was Connery-Bonds REAL name all along.
Those who have seen The Rock may have heard the theory that John Mason is Connery-Bond, captured and disavowed, replaced by the Moore-Bond and left in US prison.