I love stealth games, I have played and completed all of the splinter cell games except chaos theory, I'm not in to going through the whole game without killing anyone but I can't ever be seen, it drives me crazy. For those of you that have played it, is normal a challenge or should I bump it up, if so what to?

I'm playing it on Realistic, which the games lists as 'for Splinter Cell Veterans'. And so far, it seems accurate. It's challenging with a stealth approach. No idea if the assault approach is way harder on the difficulty, but stealth on realistic seems appropriately challenging.

Also, play Chaos Theory. That game was so good.

Realistic. There is no challenge in other difficulties.