Homecoming (4/5)
This may be the best short in the collection, rivalled only by another (which I'll get to later). Basically, it has a past and present section. Focusing on Daisy-023, it has her flee Reach with a number of other Spartan trainees, only to make it back to her old home, to find her flash clone living in her place. Realizing that there's no 'homecoming' for her, she returns to the program. In the present, she and marines are fighting for their lives against the Covenant. They try to escape, but they fail, and they all die, only for Daisy's body to be found by John later.
I really like this one. The concept is great, of not only a Spartan fleeing the program, but confronting their flash clone. Yes, technically that the clone is still alive at this point in the story is arguably a stretch (though the clone dies soon afterwards), but there's a kind of 'quiet horror' in Homecoming that runs through it. Here's Daisy, drawing a gun on her clone, who's physically the same, yet also different (long hair instead of short hair, wheelchair bound instead of being in peak human condition, etc.), and then simply walking away, only to die on a distant battlefield later. And again, you'd think that a Spartan could help save the marines, especially since she's briefly reunited with her friend (Ralph, who also fled, but also returned, but washed out, and ended up in the marines), but no. They die, and die horribly. This, coupled with the offhand remark of how two of the trainees who fled alongside Daisy and Ralph also made it to their flash clones, and committed suicide after discovering what the Spartan Program had replaced them with.
So, yeah. Dark story, good themes.
Odd One Out (2/5)
I absolutely detest this short. If I was ranking this purely on how I felt about it, I'd give it a 1/5. It only gets a 2 because what it does, it does okay. I just detest what it does.
OOO is a 'sattire' on Halo, but what it's actually parodying I have no idea. You can obviously do effective parodies of Halo (see Red vs. Blue for instance), but this...well, this stars Spartan-1337 (apparently the number is a reference to "Leet," or whatever), who falls out of a Pelican, and ends up on a planet with cave people, is nearly eaten by a T-Rex (the episode ends with him carried away by a pteradactyl), and fights a Brute in a DBZ-esque fight, alongside two human teenagers who are better than him in every way. Um...sure?
Again, I'm not sure what this is actually parodying, because to me, it's like the users just wanted to make a DBZ episode, but used Halo characters to do it. But the fighting isn't fun, the 'satire' isn't actually parodying anything, and it's ultimately just a waste of time. You had eight episodes to this collection, so why the hell would you waste time on one that not only wasn't canon, but doesn't even succeed on its own merits?
Bleh.
Prototype (3/5)
I mentioned at the start that Legends is a case of infusing anime into Halo. Prototype is arguably the installment that's right on the edge of getting as much 'anime' as possible without breaking the setting.
Our star is a marine called "Ghost," who, as you might guess, is a 'ghost' emotionally due to being hardened by constant war against the Covenant. In short, the anti-Johnson. Not an unexpected reaction, but dear god, the dialogue in this is terrible at times. Ridden with cliche, to the point that his self-destruct code is "be human." Gah. What saves it (sort of) is that his last stand involves taking control of a titular prototype combat suit, and wasting numerous Covenant before finally being downed.
Basically, the suit is a mech that wouldn't be out of place in mech anime (I think?). It kind of strains credulity, because in-universe, mech suits are extremely limited in their applications at this point in time. It's one thing for the Spartans to wear power armour, it's another to field actual mech suits in-universe, and while exceptions exist (e.g. the Cyclops), they are indeed exceptions, and this thing is like a mech fan's wet dream. That said, I can actually swallow it - it is, after all, a prototype, so I can buy that the UNSC developed it on this one planet, and never developed it again due to cost and/or resource constraints.
So, you have good action, with okay canon, with assinine dialogue. Hence, a 3/5.