Another brainstorm, maybe turn Fire Beetles into Amp Beetles, and have them also detonate on shields and disable them - 1.5k dmg to shields.
Or add T2 'Amp Ram' unit that has personal stealth, and it attack shields from somewhat small range - just big enough to stand outside Sera T3 shields (so you don't get the odd behaviour of it going inside a shield and then not doing anything xD).
On the topic of names... As already mentioned, original names are kinda all over the place, but two main themes are 'animals/mythical beings' (Mole, Mantis, Medusa, Rhino, Viper, Fire Beetle, Cerberus, Dragon Fly, Cormorant, Barracuda, Siren, Mermaid), 'professions' (Hunter, Hoplite, Loyalist, Deceiver, Disruptor, Guardian, Corsair, Renegade, Revenant, Wailer, Jester, Prowler, Soothsayer) and 'greek-stuff' (Zeus, Myrmidon, Olympus, Salem, Gemini, as well as some stuff from the previous 2 categories) which is also kinda all over the place in and of itself. Despite what many are arguing, there isn't actually any cohesion. You could say 'greek', but if anything there are more animals. But so are there plenty in say UEF.
Whatever the name, what I'm not liking is the current trend of 'a thing that breaks the shield', because they kill shields, but in reality, the purpose of the shield is more akin to walls and other fortifications. So yeah, if we are going the direction of defense-neutralization and in particular 'siege weapons', "Trebuchet" is already taken; "Ram" kinda sounds lame (though it does have the double source of both animal and siege weapon), "Scorpio" sounds very good to me (though again it was more of an anti-infantry weapon, rather than anti-fortification), "Catapult" doesn't seem fitting.