they *ONLY* give up a killpoint, if they survive
45 points you a termie armoured FNP 2 (eternal warrior ) wounds counterattacking thing that can reroll against most big stuff and hits most normal meq on 3s.
(thats not the best build or anything just the easiest off the page example of )
I'd have him captain my smurfs if I could

the wolf guard options are very nice, especially when in terminator armour..

replace storm bolter with thunder hammer
replace power weapon with thunder hammer