Control:
AC1:safe-light
AC2:Pitch for gun barrel,Trim for turn of turret
AC3:Trim for captain's perimeter mirror
AC4:Trim to open the shelter for cannon mirror
Vtol to open hatch cover
Throttle to unfold the antenna
AC7:Smoke launcher
AC8:Vertical stability
This time the scale of my Leopard2A4 has come to the same size to the real one which means it's a 1:1 version.More details have been added.Hope you will enjoy it.

Some screen shot of my Leo2A4

The introduction of Leo2A4

The most widespread version of the Leopard 2 family, the 2A4 models included more substantial changes, including an automated fire and explosion suppression system, an all-digital fire control system able to handle new ammunition types, and an improved turret with flat titanium/tungsten armour. The Leopard 2s were manufactured in eight batches between 1985 and 1992. All the older models were upgraded to 2A4 standard. Until 1994, Germany operated a total of 2,125 2A4s (695 newly built and the rest modified older versions), while the Netherlands had an additional 445 tanks. The 2A4 was also license manufactured in Switzerland as the Panzer 87 "Leopard" or Pz 87. This version included Swiss-built 7.5 mm MG 87 machine guns and communications equipment, and featured improved NBC protection system. Switzerland operated 380 Pz 87 tanks.
(from Wikipedia)