User blog:Spacemarine12/Rules Help

I have created stats for a new Space Marine hero I have checked, it is most certainly not overbalanced and I checked the codex and I hit a problem the rules on it were incredibly vague. Bassically they said a bunch of random stuff that was barely discernable as english. I got one useful piece of information if anything is a departure from the normal rules inform the opposing player, otherwise I'm in the dark please help me on this matter.