(Placing in "Fanfiction" section because it's more of what 'might be' than what is in the canon Muv-Luv universe)
Just a thought: WHERE does it actually -outright- state in Muv-Luv that the BETA's 'creators' are silicate-based lifeforms? All of a sudden I'm not sure if assuming the "Creators" as "silicate"...or even having a -physical- form might not be a very incorrect assumption. I was basically tossing the idea of a silicate being wearing carbon-based organic armor (EG like a robot wearing BETA shells as 'Body Armor"), but stopped that train of thought just ten minutes ago when I thought this up
(Four Vodka-Cranberry drinks helped, as did reading up on some...old stuff).
In primordial space, timeless creatures
made waves. These waves created us and the
others. Waves were the battles, and the
battles were waves.
Fleeing all W'rkncacnter, Yrro and Pthia
settled upon Lh'owon. They brought the
S'pht, servants who began to shape the
deserts of Lh'owon into marsh and sea,
rivers and forests. They made sisters for
Lh'owon to protect and maintain the paradise.
When the W'rkncacnter came, Pthia was
killed, and Yrro in anger, flung the
W'rkncacnter into the sun. The sun burned
them, but they swam on its surface.