The multiplayer matchmaking system in Call of Duty: Black Ops II will work using latency and ping, Treyarch has confirmed.
In a series of tweets, game design director David Vondehaar explained that the upcoming entry in the Call of Duty series wouldn't rely on region-based matchmaking, as was the case in previous games.
In response to being asked whether the locale-preference in matchmaking would again appear in Black Ops II, the following exchange took place:
In theory, this should result in fewer instances of host migration and drop outs, which have frustrated Call of Duty players in previous instalments. This isn't the only good news we've had for Call of Duty multiplayer fans recently; earlier this month Treyarch announced that the Call of Duty Elite service would be free to Black Ops II players.