I agree. My buddy and I 2 man this every week. It is actually really fun. Go in and get the witches. Kill them. Go in and kill the shrieker. Wait till the final witch is in her song. Go in and rocket her to death while she is stuck in her song. Get out. Kill the Knights. Seriously takes less than 3 minutes. Even Crota can be 2 manned legit pretty easily if you both have Galla.