That would fall under plagiarizing.
You must have written the whole FAQ yourself. You can include tips about a certain portion of the game submitted by others [here's a sample from my guide:
The following was provided by Beamneocube in Fayt2700's guide on GameFAQs
(located here: db.gamefaqs.com/console/ps2/file/kingdom_hearts_ii_drive.txt )
"There actually is a pattern/probability of changing into Anti-form.
There are these things that you cant see called Anti-points. Whenever
you go into Valor, Wisdom, or Master forms, your Anti-points go up by
one (+1). If you change form while an ally is unconcious, the points do
nothing (+0, -0) When you change into Final form, the Anti-points go
down by ten(-10). Whenever you actually go into Anti-Form, they drop by
four (-4). Also, when you aquire a new form, the points reset
themselves. So basically, the more Anti-points you have, the more of a
chance there is that you will go into Anti Form. If you have 0-4 Anti
points, there is a 0% chance of changing. If you have 5-9 points, there
is a 10% chance. If you have 10 or more, then there is a 25% chance.
That though is not the only thing that affects the change rate. During a
normal fight, the percent is x1. During most scripted battles,
the chance is x2. During fights with Organization XIII, it is a x4.
Against Armored Xemnas, there is a x10 multiplier. In battles with
Non-Party Coopritive Characters, (such as those with the people from
Final Fantasy and when Hercules is with you, but you cant see his health
bar) there is no chance of transforming (x0)."]
You can't copy a whole guide though.