overwatch
I know that players can spectate other players matches if they are friends with them. What I want to know is, how I can spectate a game while in that game itself.
For instance, sometimes I see someone with a very cool hero skin that I want to see what it looks like in combat, so I'd like to spectate them. Or I'd like to spectate a player who looks like they know what they're doing and has good skills so I can learn from them.
How can I spectate a match in a game I am currently in?
No, there's is not. In fact Jeff Kaplan himself has stated in an interview:
So we we basically stopped displaying any form of scores, kills, deaths because it really wasn't telling the story of who was doing their job properly to win or lose as a team. And really, what it's all about is, "Did you win or lose as a team?" None of that other stuff really matters at the end of the day.
You have some form of knowing if you were one of the top performers of the game by the medals and upvotes you get.
You can also view your performance in the "Tab Menu" or tab-screen. See the next section.
The tab-screen is not the hero select screen. Here's an example of a tab-screen:
As you can see there are some of your stats there that you can check but you can't compare them against any other player. As I've explained in the previous section, this is intentional to promote team play.
During development, Overwatch had indeed a scoreboard that has since been long removed.
The scoreboard used to look like this:
Currently, there is no way for a player to change between Attackers and Defenders when they want to, whether there's an open slot on the other team or not. If one really wanted to (have a chance of) changing teams, they could leave the game, and rejoin, however, this affects your Win/Loss ratio, adding a negative point to your ratio.
Odds are, there's little chance for this to be implemented, as Overwatch is a six vs. six objective-based game, if players were given the option to switch teams to their liking, it could easily be abused to win by switching teams as one team does better than the other.
Best Answer
According to this,
and this is inline with what I have experienced through in-game testing.