Gnomish Magma Bomber

I was thinking about Gnomeregan the other day, and I wondered why, if the instance dungeon is so low level, hasn't there been any serious effort to reclaim it. The gears in my twisted mind began to grind, and I began devising a gigantic full-scale raid to reclaim Gnomeregan that would never actually happen but would be awesome nonetheless. This is an example of some Gnomish infantry: the Gnomish Magma Bomber!