Always play the good guy, no matter what. Relatively simple rule.
This one's a little trickier. If I have at least one side mission in addition to my story mission, always complete the side mission(s) first. No matter what.
Never go in blind. I want the best ending on my first run through, because odds are I will not play the game again. I always have a walkthrough on hand for most games and I've already read the Wikipedia article on the story. Well, less of a rule and more of a habit.
This one's a little trickier. If I have at least one side mission in addition to my story mission, always complete the side mission(s) first. No matter what.
Never go in blind. I want the best ending on my first run through, because odds are I will not play the game again. I always have a walkthrough on hand for most games and I've already read the Wikipedia article on the story. Well, less of a rule and more of a habit.