Same for me 10/12
I need "du faucon" (ie block something like 20 times) and "pacificateur" (disarm 7 or 8 weapons with choc). My only counter brute is too offensive to block 20 times XD.
1) "Pacificateur" is by far the hardest one. I try to use my spy to unlock it but she's not perfect... It must be what you're searching for. Only Rico has it in this forum.
More info here but everything is not always right : http://pictorama.comxa.com/liste_labrute.php
Sorry it's in french but I'm too lazy to explain this (cause they are easy to unlock except the 2 I still need...)
2) If I remember well, depending on the levels, you'll win 91, 92, 97 or 98 hp for +3 endu.