Well generally speaking I see people run 2 Hammernators and 3 Claws.
In case people want to hit you with AP2 weapons the hammers take it, claws are good for attacks.
I suppose it is preference. I know that 4
TH/
SS termies and a claw are hard to take down. The claw is there for some I 4 attacks before they lay a lot on you.
If it where I? I would run 5 man hammernator squads. Any time I see lightning claw/regular termies, I try and hit them with as much AP2 as possible, 5+ invuls only get you so far. that 3+ is nasty and something to consider, plus any
MC's and vehicles that get hit also have bonuses.
Vehicles, makes them stunned or shaken, forget which, I think shaken.
MC's, makes them go at I 1 next turn. plus the
STR 8 is nothing to gawk at.
EDIT:
Oh ya, take shrike in with you for some good old fashion fun.
Depending on the mission you give them all Fleet, and you can infiltrate an entire unit of termies into an opponents face with shrike