It depends on who you will fight, but I can give you some general advice anyway.
hq shadowseer 85pts
tangle footgrenades, power weapon , s.pistol
Nice. Nice and clean. Domino-field will keep this cat alive a while longer though, so if you can find the points it is worth it.
elites solitare 190
kiss,s.pistiol,d-field,dreadmaskpowerblades,pahse feild,tanglefoot grenades.
Pricey. Very pricey. I don't use the phase-field with anything, but if you feel you want to, go ahead.
elites DJ's 114
brightlance
troope1 200
8 harlies
I would put a powerweapon and a kiss in each of the squads, for better punch. You have bodies enough, and anything over 6 you can't move on the venom, anyway.
troope2 200
8 harlies
troope3 150
6 harlies
venom,65
holofeild
Fusiongun. It has worked wonders for me. it gets close enough to melt some armor here and there, and this is never a bad thing. At least not for you.