The EC-635 is an armored utility helicopter currently in use with the Swiss, Iraqi, and Jordanian militaries, as well as (allegedly) the elite KSK division of the Bundeswehr. The EC-645 is a prospective variant of the 635 with hardpoints for various weapons, including ATGMs, unguided rockets, and autocannon.
Model created by mandun on Thingiverse, ported to STL by me
mandun: https://3dwarehouse.sketchup.com/user/0004043920460615056142412/mandun