Thanks!
Well lets see, the relatively easy color scheme, the ability to field either chaos marines or traitor guard and it be from the same army (made a bit easier now in seventh edition unlike in fifth edition), no need for marks or people to try and ram them down your throat. Things like that; oh and I find the higher use of ordnance and heavy weapons kinda fun, backed up by terminators and large blocks of regular marines.
Well lets see, the relatively easy color scheme, the ability to field either chaos marines or traitor guard and it be from the same army (made a bit easier now in seventh edition unlike in fifth edition), no need for marks or people to try and ram them down your throat. Things like that; oh and I find the higher use of ordnance and heavy weapons kinda fun, backed up by terminators and large blocks of regular marines.