My constructive criticism is that I need MOAR! So I understand its going off the Heaven's Feel route but given that there are many other Fate x RWBY crossovers where Shirou keeps his secrets it was refreshing to see him open about it to the right people. I hope your schedule allows for you to work on this project more.

Man I really liked Shirou's honesty, it really makes him feel like this, the guy has nothing else ...
and as our friend down here said it would be much better for shirou to be an ospin agent, reasons: he has more space and freedom for his missions, he could also be a powerful wild card for the enemies without knowing about his existence, about the romance: let it go naturally shirou has to know all the candidates for him to decide whether or not he has peers LOL, FANSERVICE: PLEASE PLACE Acher EQUIPMENT EVEN IF IT IS TRACKED, Plot: it would be cool for shirou to be kind of a partner / helper of qrow, well these are my tips is the opinion of history, i hope i helped (;

Qrow: Hey kid. Why doesn't my Semblance affect you?
Shirou: "nervous laughter" E-rank luck dude. The dead cannot die ...

Wow some of the best writing I've seen yet. Fantastic integration of both universes too. Wasn't able to check the date of when this was updated. But hopefully you continue yeah?

I do hope Shirou take back Avalon.

It's a good story so far, I'm interested to see where you take it.

Good so far

its not bad, but its good either. could be better

Is it really necessary to give her Avalon? Even if there are no Saber left, the reason Shirou doesn’t die when he cannibalize his own circuit is because of Avalon. And he can simply Trace Avalon to save her there are no reason to give the real thing. It still EX rank after all

Great, however there are a few grammatical errors.

What's this? Amber is healed and will get the chance to be an actual character?

Love it. And yeah, those two Gods have no idea how humans behave or feel.

YOSH! so very beautiful!

I quite enjoyed this fresh open take on the trope of Shirou entering the RWBY fray. Though Avenger being with Salem might be a bit too OP, but I suppose a piece of it may give some leeway.

I find myself wondering how you will go about with Amber's character, since she barely has any characterization in the story. I do really hope that you somehow avoid the Shirou as a student or as a teacher trope, since both of them never seem to be the best way moving forward and quite restrictive in advancing the actual plot.

Hopefully you have something fresh in mind, be it a special agent like Qrow introduced to RWBY through their first mission or someone sent out to canvas the wastelands due to the power at hand with story sharing etc with the main cast. I'm quite looking forward to the direction you take with the story.

not working anymore?
but he should have it back, because having Avalon in her might create ANOTHER Sword just as it did to Shirou
and that happened to Shirou while it was out of energy

and hay, maybe have a nice stand made for it so it looks like he has SOME personal belongings that he brought with him to Beacon

That's an interesting start, i'm curious in how the story gonna develop.