Activision welcomes players to to Season 4 of Call of Duty: Modern Warfare. Temporarily delayed in the wake of last week's #BlackLivesMatter protests, the company has now gone ahead with their planned launch of the latest season of their hit series. The only downside to the launch so far seems to be larger-than-expected update files, though the tech team is on the case and seems to have resolved the issue for most players. Here's everything else you need to know once you get a chance to actually start playing: The battle is heating up in Verdansk …