Admech/Skitarii/Inquisition Combo...

Take a Dominus Maniple with Vanguard (sub in Belisarius Cawl), also take an Inquisititorial Representative from the Imperial Agents book containing an Xenos Inquisitor with Rad (& Psychotroke?) Grenades and Saint Curia's Autopurger. On the turn someone charges, the enemy has -2 toughness, and must take a toughness test at the I10 step or loose a wound for each test failed, as well as any dataspike etc. attacks (with Cawl that is an additional +2D6 S4 attacks), they also loose any bonus attacks from charging, and Psychotroke Grenades can be hilarious as well...

you can get all this for under 500points.

let me know what you think?