I'm including both in my main army. How to use them to best effectiveness? Already mentioned Iron-Grimhammer concotion and 2 iron guard have easily slain Mahur in battle (60 points I belive). Any tips on these dwarf elites?

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"Hey Echo!"
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Each is definitely useful in their own area. Khazad's are tough as nails, while Iron Guard have more offensive potential.

For Khazads they are my kind of Marines, meaning I send them in where I need something to get done, tying up stronger enemies or opposing Elites. Iron Guards I use as my horde killers, picking off one enemy at a time through their good FV and 2 attacks, but they're more susceptible to bow-fire so be sure to screen them.

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Screen them? A little confused on what that is.

_________________
"Hey Echo!"
"Stop calling me that!"
"Stop repeating every order!"
-Clone Cadets Echo and Droidbait

Screening then means placing other more expendable units in front of them to soak up arrow-fire until they're close enough to charge in

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GBHL Youtube Channel
MiniWargaming