Ive played with cloth parameters ALOT and still havent got any result that seemed even close to this one.
https://vimeo.com/26018090 [vimeo.com]
can someone explain how to acheve this metal-look deformations?

http://www.sidefx.com/index.php?option=com_content&task=view&id=1540&Itemid=344 [sidefx.com]

Have not played much with Cloth in H12 but this should probably give you some hints even if it is based on H11.

And the masterclass for H12 Cloth should give you some more hints:
https://vimeo.com/58110566 [vimeo.com]

Don't get too frustrated, it looks like the creator of the videos has written his own simulation program. Without a look at his code or wireframes there's no telling what his setup is.

To hazard a guess I would say that his rigs have a semi-rigid internal skeleton that deforms on impact and that's what gives the skin those nice wrinkles.