>>714334141
Officially? I'm not sure, but there's so many different warbands you could make one up. As mentioned by >>714334747, Khorne and Slaanesh are diametrically opposed in the same way asTzeentch/Nurgle, so it would be very unstable. That said, in the 3.5 codex (the best edition) you could definitely make a K/S warband so long as you took a Chaos Undivided Lord and then only specific marked units. Presumably the Lord spends a lot of time babysitting

>>714348341
DeathWATCH not Death Guard. Deathwatch are the anti-xeno multi-chapter task force that let in Black Shields who may or may not have been traitors at some point, Death GUARD are Nurgle's stinkiest boys.