u/Famous_Distance_1084

Ive searched the tech tree on various websites and it seems whether they are obsolete or theres some mistakes in my comprehension of how exactly tech unlocks.

An example: Ive done observer UFO mission twice and unlocked alien electronics/stalk armor. The tech tree says I should be able to research Gauss weapon but Ive literally finished all research programs and the tech is not there.

Ive seen the wiki mentioned it needs advanced alloys as a prerequisite (which isnt mentioned at all on ALL the tech tree pngs Ive found) and it seems that Ive already done it, cause I have guardian armor upgrade appear in my eng room.

Are there any up to date tech tree photos or do I miss something? Thanks for help!