In the early days of World War II, a covert military experiment turned Steve Rogers into America's first super-soldier: Captain America.Marvel Source
During the war, Cap served as a symbol of freedom and America's most effective special operative. In the closing days of the war, Captain America disappeared in an explosion over the North Atlantic and was presumed dead.
Decades later, his body was discovered trapped in ice, preserved in a state of suspended animation! Upon his revival, Captain America joined the Avengers and once again took up the heroic battle against evil.
I personally prefer opening strike because of the attack speed but if you take aggressive shout you combine it with shield strike.
Shield Toss is a good single damage attack and shield bounce for mobs and you can attack still attack while your shield is gone and win shield points so that they can be stun.
And of course leaping strike for great damage.
I use athletic leap for my get away skill , i advice you not to use stunning backflip cause it uses shield points.
Thats all for that build , have a good time playing.
(sorry if i did english mistakes , im french =S)