You're so close to that battalion being a brigade. I suggest moving the Reavers over ... oh, wait. Lhamaeans don't fill a slot, do they? Ah, well. That said, it's overall venom-spam goodness, plus the Yncarne.
Otherwsie, I'd give Huskblades to all the archons, and a blast pistol here or there, for the in combat pistol-snipe-chracter exploit. Since archons, once in h2h, are best suited to killing enemy HQs.
Um. So, why the Lhamaeans?