This is an old post from the year 2012 recovered from the Web Archive.

Behold! The overmind!

Easily the single largest model for the alien team, with two large arms that it swipes around to attack you with. The green segments on its brain sac will be animated to pulse slowly with burning hatred. After Osiris puts his finishing touches on it, we’ll get right to work on animating it. Expect the overmind in-game during Alpha 7 (September 1st).

https://www.youtube.com/watch?v=I6X1kKF28Tw

The video has been made private by his author.