Hi, I'm fairly new 2 Warhammer and I'm having trouble working some of the rules concerning different Army mixes, I also live in a small town with no shops that sell or play Warhammer so I'm limited on how much I can learn from watching people play. I have seen that in the blood angles list on the games workshop sight you can get SM Terminators, and SM Combat Squads, and so on. But on the Grey Knights section you can only get SM Dreadnoughts and some SM tanks. Would that mean that I couldn't use SM out of my AoBR set with a Grey Knight army? Also where can I find more information concerning these kind of rules? Like mixing Chaos SM and Chaos Demons. Or Grey Knights, Blood angles, and Space Wolves. It seems the rule book covers the game rules like rolling and moving, but not so much with the armies.