Echo

Likely the most knowledgeable of the remaining Anti, Echo was the final model built by humanity before the ambush. The most nuanced, she spends her days as head researcher and developer and seems capable of comprehending more complex topics than most – to the point that she was the one who was able to program the remaining Anti with the extra directives to find humanity’s notes on building them. She's made known her desire to work on the front lines before, but also understands that she's a bit too valuable at her current post to lose.