Firstly, an observation than has been niggling me for a while. All Chaos Walkers have Powerfists. Either I'm missing something or this is worse than a dreadnought close combat weapon. On the subject of walkers, the helbrute seems... a bit dull as it has no acces to the vehicle armoury.
Looks like I'll finally be able to play some 40k in the near future, so I started putting together some list for my GKs. This is the one I am thinking of at the moment, though I have no idea what the current meta is at all.
Might of Titan,Warp Rift,Sanctuary,The...