If you run Hellions i recommend putting Baron Sathonyx in with them. For 105 points he makes Hellions troops, and gives them Stealth and rerolls to dangerous terrain tests. Plus against lightly armoured stuff he hits like a runaway icecream truck, 5 Strength 6 hits on the charge i think, not bad when he throws out 2 poisoned shots in the shooting phase aswell. No power weapon though, but you can't have everything i suppose 
I took Baron most games i used Hellions, simply because no matter how carefull i am with them, or how much i hug cover, they seem to be total bullet magnets, so he gives them a bit more survivability.
I took Baron most games i used Hellions, simply because no matter how carefull i am with them, or how much i hug cover, they seem to be total bullet magnets, so he gives them a bit more survivability.