In game settings:
The best in game settings to record at maximum quality is turning everything on high and 32 bit texture(obvious I know) then go to your config and change the resolution to 1280 x 720 if you have a better computer you can increase it to 1920 x 1080 I've used 1366 x 768 before.
Record using a minimum of 60 fps the higher fps you record the smoother the clips and cleaner the slow motion. Gameplay CAN be recorded at 30 fps and run decent, but you can't slow mo at that frame rate.
To increase FPS download Iobit Advance System Care and turbo boost your computer, gamebooster works too. The higher resolution you record at the lower FPS so make sure you keep that in mind.
You will need X-Vid Codec
Just chose best render settings
Color Correct Pack:
Some useful plugins to have for editing are
Magic Bullet Looks
I'll update this with links and more pictures if people find it useful. If you want the CC pack message me at: firstname.lastname@example.org