There were big things about grammar though I’m sure people have told you and do some research about both universes if you have to defiantly fate and stuff about the age of team STRQ

Decent idea, but needs a lot of polishing overall. Yes, you really need a beta to help guide you, especially since you're "new to both RWBY and Fate/Zero".

Grammar-wise, it needs a lot of work. Tenses, punctuations and whatnot, yep.

I see some mistakes, such as the usage of the term "wizard" instead of "magus". There are significant differences between wizards, magicians, and magi (which Kiritsugu is one). I hope you research more on the established lores and systems of both universes.

Aside from that, Aura and Semblance are a different system of power compared to Magecraft or Thaumaturgy. Aura revolves around the soul, while Thaumaturgy mainly revolves around the usage of magic circuits and magic crests. It will be amazing to see whether Aura can help push Time Alter to its limits, maybe even beyond Time Alter - Square Accel or Time Alter - Triple Stagnate.

About "Trace On" here, hmm, I hope you do understand all the mechanics and underlying principles of it. If not, consider reading all about Gradation Air (sure, Kiritsugu taught Shirou but do note that only the latter overspecialized in it). And I have to agree with the sentiments of a crashclown regarding personal aria, so, yes, perhaps use a different one instead of "Trace On".

Considering you have Kiritsugu as the MC of this story, I do hope you can really bring out his essence, his ideals and character, and whatnot.

Anyway. Cheers, mate.

A little rough around the edges but i still enjoyed it. I'm no good as a beta but if you have any questions about the Fate series side of thing i might be able to help if you need it._ Also. Please let Kerry have his signature Thompson Contender. The thing is a beast .

Continue

interesting to early to say if the whole thing will be good or not but I can say it will definitly be interesting good start. The projection semblance is a nice choose kiritsugu was the one who taught shirou projection so it makes sence that he can do it just nowear near as good giveing him a semblance that lets him use it is interesting also its called projection not trace. Trace is when you scan an object to get the details of it like density, weight, lenght, withe and materials its made of it can also be used to strenghen the object. Altho he taught shirou that too so he would know it and you need to know the details to efectively use projection which trace would help with but kiritsugu probably already knows the in's and out's of his gun any way
looking forward chapter 2

mas cap

Are some of the parts machine translated?

Good idea/concept, but you gotta get someone to help you out with the grammar.

Very nice
Kerry x summer love

waiting next

You don't need beta to develope more ideas, you need beta because of your horrible English.

Sorry if it hurts your feelings, but as it stands, you need more help in grammar department.

Best regards

keep going

It would be better if you used CG Emiya...
.You have good start.
Keep it up.

This is a fine story, But I would suggest reading it over and touching it up a bit. Other then the occasional mistake I can't be bothered to point out you did a great job, Keep it up.

Kiritsugu is capable of seeing Servants move, somewhat anyways.
That's faster than what Ruby is capable of - at least twice her max speed - Summer should be still visible to him.

Also, CG EMIYA would be way more entertaining as a story character in Remnant.
Stronger, better, more powerful, colder, and way more badass.

Hell, he moves so fast that he is similar to a Lancer!