Now to get into the Multiplayer portion of the game. These achievements are by no means hard to do; you just have to do them.
You need to play the song "Bohemian Rhapsody" by Queen with at least 2 bandmates playing as Vocalists. This can be either local or over Xbox Live.
Beat Bohemian Rhapsody as a band with all on Medium or higher, and at least 2 vocalists (QP+)
After that, you need to get 2 Band Challenges to Gold. As with the last two achievements that pertained to challenges, you must make these gold FOR THE FIRST TIME and BOTH IN THE SAME RUN. You can't get one gold and then come back and get the other gold. An easy song to do this on is "Bleed It Out" by Linkin Park on Expert Guitar and Expert Bass. The two challenges are for hitting so many notes and for high score in a standard band (no repeated instruments). If you don't think you're going to achieve gold on both challenges, make sure you restart the song before it ends so you can have another shot.
As a Standard Band, earn Gold or higher on 2 Band Challenges in a single play of a song (QP+)
You can knock these next two achievements out at the same time if you play "2112 part 4" by Rush. The first achievement requires you to 5 star any song as a 4-player standard band, which means NO duplicate instruments. Make sure everyone's on Medium or higher and this achievement should pop for all of you:
5-Star any song as a 4-player Standard Band, with all players on Medium or higher (QP+)
If you've played "2112 part 4" before, you should have unlocked this achievement, but if not, you need to play the song with at least 3 people total in your band with no duplicate instruments. Just passing the song will net you this:
Beat 2112 Part 4 as a Standard band with 3 or more members, all on Medium or higher difficulty (QP+)
Now you need to 5-star a song as a 4-player Non-standard band. This means at least two people need to be playing the same instrument (2 guitarists, 2 drummers, ect.). 5-star any song and unlock this achievement:
5-Star any song as a 4-player Non-Standard Band, with all players on Medium or higher (QP+)
If you haven't accidentally unlocked this next achievement already, here's what you have to do: every bandmember has to be deployed in Star Power at the same time while in 4x Multiplier after a Band Moment goes off. This sounds hard to do, but it's really just holding your Star Power until a band moment happens. Play an easy song like "Bleed It Out" by Linkin Park and perform this to unlock this achievement:
Earn an 11x Band multiplier with any 4-player Band configuration (QP+)
Now the band stuff is pretty much done. What you want to do now is improve your own grade in a challenge. Go into a Star Challenge menu of a song and get the worst grade on the challenge. After that, exit and select your own GamerTag to challenge yourself. Get a higher grade and achievement unlocked!
Target your own score on a Challenge and earn a higher grade than you did previously (Local QP+)
Now you need to do the same thing for one of your friends. Go through challenges until you see a friend on there that has a low grade, and select his name to challenge him. One-up him and you should get this achievement. Keep in mind that the game will make you play on the same difficulty your friend played on. Also, if you don't have any friends that have ranked on challenges or they all have ranked too high for your tastes, you can always use a Silver account and score low intentionally so you can one-up it.
Target another person's score on any Challenge and earn a higher grade than they did (Local QP+)
Okay, now you're going to attempt to get all 42 stars in a song. Keep in mind that Power Challenge stars do not count. Choose an easy song and get all of the challenges you can, and try to get bands together and obtain Diamond in challenges. I would put this off while I grinded stars, but I did this on "Bleed It Out" by Linkin Park.
Earn all Stars from any one song (excluding the Power Challenge) (QP+)
Now you need to play most of the competitive gametypes. This MUST be done locally, becayse Momentum+ cannot be played online. Just use two of the same instrument and play locally, going down the required gametypes to unlock this:
Play Pro Faceoff, Momentum, Momentum+, Streakers, Do or Die, and Perfectionist at least once each
Now you're in for another grind. You need to get a total of 2000 stars in Quickplay+. You can get 42 stars in a song normally, and you can get additional stars while playing the Power Challenge in each song. This isn't too difficult, it's just a grind. This should net you your last 4 achievements:
Earn a total of 100 Stars (QP+)
Earn a total of 500 Stars (QP+)
Earn a total of 1000 Stars (QP+)
Earn a total of 2000 Stars (QP+)
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