Have been playing since release. Everytime over the years I would get close to achieving this, WG would throw out another branch or an entire new tech tree that had me grinding more and more.
I finished it out this morning with the T100 LT, K91, and the GwType E100. I have now unlocked the entire tech tree in the game – aside from incoming new branches in the years to come, of course.
Just thought I’d share my happiness this morning.