On some other forum i found out that you need Preator Overmind, but i can't find him. I capture few Preators terror leaders but that's all. Also i think that i am suffering from bug with my tech tech because on phase 4 i capture evey alien unit and theis weapons and still my technology is old-fashioned. i have no sentinel armour and many more cool wepaons and armors. i check the tech tree for mod x-division and i gather everything that i need for them and still nothing.
I have many fun playing X-divions mod, very hard but really cool. It was first and last playthrough on this mod and also game. i decided that i wll stop playing this because i can't get any more futher.
Big thanks to the authors of mod X-division you guys did amaizing job it was honor for me to play it.
Stay strong Charon.