It Appear's that almost no one here has given you the obvious props you deserve for this amazing image !!!
Fantastic job mate hope there are many more like it.
As for the random cap convo's seriously ?
He was Shot by his Brainwashed ex As part of the red scull's sceme. he surrendered because even though he was fighting for his and all hero's who defended the country's rights he was doing even more damage to the people. While on the way to prison he was shot and he is NOT bullet proof. Most of his suits were, and his shield is invulnerable. He cannot be replaced no one has his skill comand and tactics besides his sheer awesomness and patriotism!
The only person who can come close is Bucky ''eg'' the Winter Soldier who he trained and who has a cyborg arm (plus Nick Furry's help ) atm he has taken up the mantle along with the suit and shield. I highly Dout he will come back for a while yet and if he does it will be epic (although probably slightly lame)