XCOM: Enemy Unknown is a great game but the tech tree left me terribly confused. The existing tech trees graphs ( on which i based mine ) helped a bit, but i thought there was plenty of room for improvements.
It turned out like this. I hope it helps you!
Also, here’s the SVG version for your immediate changes. Feel free to alter it. Let me know if there’s anything wrong with it.
XCOM:EU – tech tree ( SVG )