As can be seen from the battlelog, I created a game and invited ser09 to join. Shortly after the game began, a spectator joined to watch the game and suddenly had control of one of the characters on ser09's team. I have no idea how or why this happened.
Well, unintentional feature in that case - since coop is supposed to be dev only at this point. I'm sure Farbs will be interested in this issue. Edit: The "dev only part" for Coop applies to campaign, as Farbs pointed out.
Hi, Thanks for the report. As others have noted, this is actually working as intended. Your opponent was part of a co-op team, so in casual and custom games they all play together. Co-op is currently live for casual and custom games to help us playtest and bugfix it, and live for devs only in the campaign on the test server for the same reasons. So please, check out co-op if you're interested and let us know how you go!
I don't think that settles it. Doesn't somebody need to implement a co-op command in order to allow this new person on a "team"? Was it somehow a holdover from a previous co-op game that infiltrated this new game?
I definitely didn't invite more than one person to the game and the two players i was playing against seemed shocked as well.
The likely order of events were: A invites B to join a team B accepts the invitation Further events transpire, eg a few ranked games, some campaign play etc Either A or B joins a casual match against C, thereby bringing both A and B into the match