Grade system/Playstyle questions

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#1 Posted by Optusnet (11066 posts) -

Hey everyone, been playing for a little bit and I'm having a good time with this game.

I seem to only be able to get C or C+ for the end of each chapter which I'm unsure on how to improve. I'm always tagged as having a 'generic' playstyle, even if I switch my use of weapons or use more close combat. So here are my questions:

1. How can I NOT have a 'generic' playstyle?

2. What does the 'mobility' and 'flexibility' rating pertain to?

3. Is it possible to stealth your way completely in a level?