Tale of an Epic Gamer - August 2015 Goal Completed

I managed to complete a fairly large chunk this month.  I set myself a bit of a large goal and wasn't sure I would get it all done.  Besides adding a few of the Tyranid monsters that are basically tanks and artillery units, I also finish 45 stands of infantry.

Exocrine Brood

Biovore Brood

Carnivex / Razorfex Brood

Hormagaunt Brood

Termagaunt Brood

This month's additions.

NetEpic Gold
Hormagaunt Brood - 5 stands - 100 points
Hormagaunt Brood - 5 stands - 100 points
Hormagaunt Brood - 5 stands - 100 points
Termagaunt Brood - 10 stands - 150 points
Termagaunt Brood - 10 stands - 150 points
Termagaunt Brood - 10 stands - 150 points
Biovore Brood - 3 stands - 200 points
Biovore Brood - 3 stands - 200 points
Carnifex Brood - 3 stands - 100 points
Exocrine Brood - 3 stands - 250 points

I've got a pretty solid force at this point, but need to add a few more command units.  I also want to add a few more "vehicle" units before I call this army finished.

Ripper swarms are a unit option in the army list, but I'm not sure what to use for them?  Any thoughts?  Have any of you added ripper swarms to your epic army?