Update 0.9.6f3 - New tanks, new achievements and more

New Features:

Added Semovente 78/17 and M13/40 tanks.
Added hatch interior models for German and Japanese tanks.
AI Can now request tank support.
Added fall damage.
Added all achievements that were previously missng.
Added new structures in Kwajalein with a multi-phase destruction system.
Various bug fixes.