I already had painted 20 Skaven clan rats for our RPG games, so they've been included into the force, which now looks quite impressive.
Here's the Warplock engineer, the Poison Gas mortar team and the Warpfire thrower team.
The master moulder who "controls" the Rat Ogres
And one of the Rat Ogre's itself
I'm rather pleased with the rusty metal look I achieved. Silver, then a wash of black, then another of brown. Then a drybrush with some nice rusty orange and now they look suitably like tetanus waiting to happen.