Hello, Balgor...
First, Welcome to the Pit!
Second, be advised that we must all be careful of what we 'say' on these boards, in relation to GW intellectual property.
1) Troops classed as beasts enjoy movement benefits, but may be limited otherwise.
2) Preferred Enemy allows a unit with this trait to excel in close quarters against their particular preferred Xenos enemy. This would need to be either Eldar (of any variety), Orks, or Tyranids. This is a huge bonus in some ways, but must be modeled on the miniature so that it cannot be changed between games.
First, Welcome to the Pit!
Second, be advised that we must all be careful of what we 'say' on these boards, in relation to GW intellectual property.
1) Troops classed as beasts enjoy movement benefits, but may be limited otherwise.
2) Preferred Enemy allows a unit with this trait to excel in close quarters against their particular preferred Xenos enemy. This would need to be either Eldar (of any variety), Orks, or Tyranids. This is a huge bonus in some ways, but must be modeled on the miniature so that it cannot be changed between games.