You know what would have been even cooler? What if, instead of just whipping up a quick car-trunk-of-death-rotating-gun-turret, the Deadwood guy had simply converted the entire car into a Batmobile-style ROV (using parts from the remote control car outside Hank's house, of course) which Walt would then remotely steer in to kill the nazis? Then Walt would strap on his jet pack to retrieve (or kill, still not sure on this part), Jesse.
I'm sure I'm leaving a few out, but which part do you think was most implausible?
(a) Walt's amazing trunk-mounted automated gun turret?
(b) Jesse's ricin revelation?
(c) Walt knowing exactly where to bury the meth tanks for the train heist before Lydia informed them of the location of the train car?