Apparently his shares are worth about 385 million and his golden parachute is like a maximum of 293 million.
So if Microsoft buys out and fires Kotick, he'd walk away with like 678 million dollars. It's pretty weird that there are people who are happy about this proposition and are not named "Robert Kotick".
Who exactly do you think the CEO of Microsoft Gaming reports to? This is a pretty common corporate structure. I've worked under a total of 4 CEOs in a hierarchy before (CEO of an investment firm reports to CEO of the owning bank's European investment division reports to CEO of Europe reports to actual CEO).