A Halo MOBA would have to totally divest itself of any semblance of canon and established game balance to happen. There's plenty of other good MOBAs out there, there's no reason to denigrate Halo in the process of conversion.
Anyhow
MONTHS-LATE Halo 4 Vol 2 OST Review:
I was kind of surprised that the music was as good as it is. I guess my simple complaint is it doesn't sound like Halo. Sure, there's more touches to the original music than I realized when you take it out of the mediocre mixing in the game, but it functions a lot better on its own because some of the tonality just doesn't mesh with the "ground rules" O'Donnell established. Like all good Halo OSTs, the Volume 2 is the superior version. The actual music works better on its own than it ever did in the game.
Track-by-track:
*"Atonement" aka the main menu screen: the vocal treatment isn't bad, but it's breaking one of the "rules" of Halo's music to me in that the vocals are used more as an instrument than a voice. Aside from the Qawwali bits in the original Halo soundtrack (which, come to think of it, never reappeared in later versions of the theme, which sucks), the chanting is always tones and not a fake language or anything sounding like one (a la the Sanskrit chanting that John Williams or Jack Wall use.) The second cut with the french horns is a lot more interesting and demonstrates the more sweeping sound the Davidge and Jinnouchi like, but doesn't really fit specifically with Halo. Could they make the callback to the Halo 3 piano theme any quieter?
*"Gravity" - J's danger cues borrow a lot from pre-new age Hollywood composers, so it's not surprising that the first minute of this pulls heavy influences to Goldsmith's adventure scores, which persists through the entire cue. You could overlay this on The Phantom, The Rocketeer, or basically any action-adventure movie from the 90s to today.
*"Wreckage" - the mournful rendition of the de facto Halo theme. Opens with that swirling nothingness sound that I personally really love, though it was probably done better by the CEA OST crew. Also displays what I think is the more "default" Davidge and Jinnouchi sound, which has the pulsing electronic stuff just under the surface.
*"Aliens" - this plays in the game during the underground parts of "Reclaimer", which in my opinion is the best part of the game insofar as really nailing the sense of isolation and alien wonder in a way that hasn't happened since Halo 1 (it's just a shame that the Librarian plot dump was tagged at the end to sour it a bit.) The music helps a lot with this; the vocal arrangement is just plain different than you usually here, and it's more towards the Qawalli end. There's a great use of the synths in this piece. Personally I think it's overall Davidge's best piece, and it fits stylistically with the ambient elements of parts of Halo's previous scores like "The Library Suite" without slavishly following it.
*"Kantele Bow" - What? Davidge is an electronic composer and producer? I had
no idea. I think Davidge really just found a lot of the more orchestral stuff boring and stuck to his sound. That's his strength, so it's not really surprising. There's a heck of a lot of electronic music in Halo when you get right down to it, although I think Davidge's work leans towards more house and industrial and more manipulation/modulation of the electronic instruments themselves.
*"Pylons" - More of the Davidge "start more orchestral and go into full electronic" mode. One thing I'll say about Davidge's synths is they wear that distinction on their sleeve; some of the pieces feel almost retro in their sound and implementation. It's not necessarily a bad thing, but I kind of flash back to some of the electronic music that accompanied Dinosaur programs in the late '80s/'90s.
*"Escape" - What plays when you're mowing down Grunts in Halo 4's trench run sequence. This pulls a lot more influence from the current generation of "remote control" composers, like a bad Zimmer or his rip-offs. Still, it never gets lost in the droning swells and introduces some interestingly light bits that we probably couldn't hear over the WOWROWOWRO of the supercharged Ghost in the game.
*"Swamp" - Actually reminds me of bits of the CEA soundtrack combined with "What Once Was Lost" for the early parts. One of the better tracks with the classic "space synth" sounds used effectively. The very end veers close to becoming part of a Blue Man Group percussion line.
*"Push Through" - the drums here that start things off are a lot more McDonnell-esque, especially in his Reach period. The angry boat sound is pure Remote Control though. It develops but never does anything that unexpected.
*"Convoy" - This one feels strangely antiquated, like it should belong to a game from 1999, partially because the string arrangements are so spare in the beginning. Towards the end it develops an eastern feel. It could transition into "Kashmir" without much issue.
*"To Galaxy (Extended)" - Davidge's main contribution to the soundtrack, and the main presentation of the main theme. Overall while the theme wasn't really very Halo to me, it was definitely used effectively in the campaign, and it's simplistic enough that they were abel to do some interesting variations on it. There's more lush orchestration in this piece as well. About 4 minutes in it also gives us some "heroic human" music that I think it a lot more interesting than the music O'Donnell often used for the UNSC (the "Enough Dead Heroes" and "Brothers In Arms".) The ending
mercato progression of the strings to the final bits is very nice.
*"Lasky's Theme" - Another Jinnouchi theme. This one borrows more from James Newton Howard and Harry Gregson-Williams' sound (especially in the Narnia scores) (really, you can just hear the Narnia theme three notes off in the middle of this one.) Aside from that it's not bad, appropriately heroic. More classic use of the vocals here although it sort of takes on that generic "every modern movie about WWII has these
Saving Private Ryan bits".
*"Foreshadow" - Back to Davidge's Forerunner aesthetic. I really like this one. It actually kind of makes me think this is what would happen if you slowed down The Beatle's "Within or Without You" by 600% and scored on top of that basic sound.
*"Cloud City" - "Techno Asian village" is the first thing that popped into my head for this one, with its opening synth melody sounding a lot like Tibetan singing bowls. As the name suggests it's got a very ethereal sound with some basic drum lines keeping things grounded.
*"This Armor" - the most retro synths are definitely in this one, but counterbalanced by the choral atmosphere they work really well. It transitions into a more fast-paced piece but keeps that interesting old-vs-new sound dynamic throughout. Your opinion of this is going to depend a lot on how you like that sound.
*"Intruders" - Back to the Jinnouchi block. This one borrows more from the classic UNSC sound, as does the following track, although it's much brassier by default. I think this one was a little better used in Spartan Ops, actually.
*"Mantis" - This one is a big blend of the UNSC Brass sound heard elsewhere with some quiet electronic bridges between sections. I like using the Halo 4 theme but ending it on a minor note; gives it that innate sense of danger.
*"Sacrifice" - More in the Gregson-Williams vein. Interestingly though, when this one pulls out the halo duhduhduhDUHHH line, it actually pushes it towards a baroque, blaring horn sound that feels more at home with Modest Mussorgsky or Prokofiev than much else in the soundtrack. It's a great adaptation of a classic Halo bit.
*"Never Forget" - the transition here from the original music to "Never Forget" is a little awkward, but the arrangement of the piece itself is quite nice, a little more spare than the Halo 2Vol2 version, but some interesting high-pitched accents and synth notes, as well as the introduction of more punctuated horns. Interestingly, compared to the use of the choir elsewhere, this one shifts the high female voices over to strings, which I think sounds loads better than the original. It adds some nice pieces and horn variations onto the end too, although the final repetition of the theme starts inching dangerously too close to Christian New Age, luckily pulling back with an orchestral fanfare. Overall I'd say this is the best arrangement of the music, and personally I'd rank it as high or higher than the original.
*"Majestic" - this one goes everywhere, starting with some pensive music than pushing into a more driving theme with lots of horn blasts. You hear some of that "Star Wars" sound in the horns here and your classic rising key climax. It's fine, but "Never Forget" is a superior album-ender.
Overall, quite solid, better if you buy it as a soundtrack rather than a Halo soundtrack. It's only $10 and you can get it off Bandcamp in your choice of lossy or lossless formats, which is the only time I ever buy non-physical copies. Personally, you can have Jinnouchi handle some composition chores next game, but I think the CEA crew of Paul Lipson, Brian Triffon and (now Spartan Assault composer) Tom Salta have a better understanding of how to craft music within the Halo sound.