With all the talk about shields lately, I've started to wonder what a real shield fight looks like. If it's more than a stage or film fight. So I started to scour Youtube a bit, and found this one for example. Even if it's a left hander against a right hander it gives some idea.
Notice how the fighters use their shields to fix their opponent, and force them in a corner? With some luck you could push your foe off balance.
What that would have to mean in a game system, I don't know yet. But it sure makes me think once again.
Just saying you'll use your shield AND your weapon in attack seems a bit simple. Though that might do the trick.
Here's another SCA training, buckler vs shield. See how the buckler is at a real disadvantage. Be patient for the flurries or speed ahead.