I like the overall idea of the document. It gives a comprehensive overview of what an actor should expect their first time through tech.
Looking at it from an actor's point of view though I would take issue with some of the language. One suggestion I have is to take a less adversarial tone on a few points.
i.e.:
You WILL get a bit confused on the stage.
Will they get confused? Maybe; I wouldn't even say definitely. Actors aren't dumb! But the harsh tone could create feelings of fear, anxiety or resentment. Maybe something like "Tech rehearsal is the first time we bring all the elements of the production together. If you get confused, it's okay. One of the major objectives of tech is to work through the confusion that can arise from the transition to the stage and the addition of technical elements." would serve your purpose better?
You’re going to feel discombobulated...
Same deal.
Again I think you have the information you need, personally I just think you could help yourself improve the general dynamic of the cast by taking a more docile tone. Don't confuse that with speaking to the actors like children, because that's even worse.
Cheers, and good luck. Let us know how this document works for you!
edit: rephrased a couple of sentences. -kmc307