Pretty sure there's an auto configure function in OBS. You should try that, I've had decent success with it but you'll still maybe need to tweak a few things.
Just saying, china "horde bonus" was for 5 units in close proximity, not 3.
Also no, tactical blobbing is a strategic decision, I just wish tools to counter them, specifically machine guns all did their jobs better. It's also unclear as to how many MGs you need vs a blob of X size. Information needs to be relayed better, that is all IMO