... Hmm... Don't need to unlock, but that building is the
most expensive fuel-wise I've seen. So T34 has comparable
fuel cost to a Pz4 (5 difference) similar build cost, xcpt it's
way less capable, can't be upgraded, can't be vetted... :p
... Heck, don't even see why we'd want to bother with T70 :p
... And Soviets can't OP their points, yet, so it's like T3476
being 110 fuel comparatively :p Oy Oy Oy