Shave off the aquilas and toss a few chains, spikes, and icons onto a loyalist
ADL. Slice four of those gargoyle head barrel ends off of some heavy weapons to cap the quad gun's barrels. Add a few more spikes, for good measure, then paint to taste. Fast, easy, and effective, if you've got the bits for it. Here's an example from a quick Google image search (not my work):