Online rank should be obtainable only through Solo Q
The logic behind this is quite simple: You wanna show skill when you are competing for your rank, skill that is clearly unnecessary if you play SWF, both because this would turn into a 4v1 instead of a 1v1v1v1v1 and because you otherwise could get points that you "don't deserve" since that emblem system for survs gives point even passively from the others actions.
The ranked system now has people in red rank who has no idea of this game survivor side because they are all carried by swf that get matched with and also the bad emblem system.
If you make the emblem system connected through Solo Q only you create a real rank of red ranks who actually can play the game and actually enjoy the challenge of playing 1 against the rest with NO external help coming from premade communication or else. There will be no more bad players that get matched with good ones because people will start ranking up or down, depending on their real skill, and there will be no chance to have unfair games unless some bad games that can happen from time to time. Right now solo Q is just one game after another of people who gets down instantly and do 0 gens or killers that just get gen rushed and facecamp people.
The new MMR will only hurt the killer MORE because he will be matched with SWF over and over and over again because for the MMR they will be categorized as "good players" since they will win a lot and this will end up be a VERY bad and unpleasent moment.