I just came up with this suggestion independently and for a
different reason. Good thing I did a search before posting it as a new topic
Anyway, I propose the same idea: add an option for anonymous game type where it shows you who is in the game, but you can't tell which color they are until the end of the game.
How I came about this idea: recently 2 of my friends and I have been playing 3p games. We're doing a marathon, starting with the first map and trying to get through all of them one by one (3 games at a time, each of us starting a game each, with whatever settings we want). After a few games we realized that playing with just 3 players continuously, we started to learn some pattern associated with the other 2. It turns out that that fact affects how we play quite a good bit.
Aside from some pros and cons posted above, the Anonymous Game option would help alleviate this problem for us and those people who often play with the same friends. Please consider it