Powerhits, Knockdown & Rendering
My first suggestion is power hits, a very slow but very powerful hit for 2 handed weapons, obviously this is to break through shield blocks doing a little damage and opening up there defence but it chews through stamina meaning an ally will have to take the shot while he can. this should also leave the attacker vulnerable for a second also
my 2nd suggestion is Knockdowns, anyone hit by a power hit and not blocking is killed or knocked down
this means players should be more careful when swinging them near allies as knocking them down leaves them open to attack
my final suggestion is Rendering, many times i have aimed for ppls legs in hopes they would slow down and while not doing much damage would still have a role for aiming at them
The devs have said nothing like this ever, as it removes skill based gaming.