I see what you mean, i was looking at the warmaster 100pts, didnt realise there was a warmaster at 50pts. As i said extremly new have only played a few games, my roommate is teaching me.
We're having a game later tonight to trial this list
1xDespoiler w/Chaos Warmaster
3xSlaughters
This gives both Carrier, up close gunnage and Lance capabilities. It's worth trying the 4x slaughters 1x styx as well now i know it can be done, thanks for the info.