I beat GOW3 on Titan. Yes!!!!
The only 2 parts that were hard was the cerberus + satyrs fight and the last part with Zeus. Other than that, it was a good challenge.
Awesome game. Great graphics, great gameplay. I found the story to be not bad, but not great either.
So now, all I have to do is beat the challenges and I will have my 28th plat.