Well, your first problem is that you're wasting time on Xenosaga. Go play Xenogears.
I've already played Xenogears, but thanks anyway.

As for your information...

How do I get Medica-all?

Also, Chaos's AWGS isn't bad, but I have yet to upgrade Shion's, so it really sucks.

And I don't exactly know what W-ACT is. I don't fully understand the features of this game yet, which is a problem.

Thanks for the info.