Likely Iron Hands, seems to fit my playstyle pretty well. Although there is a chance I might use the Ultramarines' as well.
“This is our next objective, our next battle, our next war, brothers. It is there that we shall teach the enemy the wrath of mankind, the wrath of our beloved emperor. With boltgun and chainsword shall we strike the enemy down in righteous vengeance. Our foes will know fear and death, for we are the emperor’s fury! None shall stay our wrath!”
- Chapter Master Tyreal Ardeus of the Crimson Gallants