Stealth game Tutorial, need some criticism

Hi!

I'm making my first tutorial series on Construct and I could use some constructive criticism. It's a top-down 2d Stealth game and my main worries are that is something I can make better and if there's another bug I can report (I already reported one bug in the course of making this tutorial and it was already fixed!!!). For example, I've noticed the pathfinding behavior freezing sometimes for no discernible reason.

Here's the project file, for those interested: https://drive.google.com/file/d/0BxwjZElKHboLUjBOUS1ZRHk2ZVU/view?usp=sharing

And here is the tutorial playlist for those interested:

Thanks!

Good tutorial! Thanks.

Cool bro.

Oh I was going to say, the English helps