Did that end up being in continuity?
Yeah.
you can read about it being in continuity here:
http://en.wikipedia.org/wiki/Isaiah_BradleyWhich makes NO sense. Why would Cap serve a government and a Super Soldier program that murdered 300 black soldiers?
Marvel was trying to do their version of the shocking and racist Tuskegee Experiment but ended up shitting on Cap for either being a dope (for never finding out about the murder of the 300) or a callous, apologist of a schmuck (if he did find out).
Cap met Isaiah Bradley, a survivor of the soldier massacre in France I think, but I don't think the massacre ever came up. Instead of talking about that mass-murder and the moral hypocrisy of the US Army based on their actions, I think they had to beat up Baron Zemo or some shit.