D&D 5E Question on Alert

[Inglorin]

He could take the Dodge action, which would mean that he would impose disadvantage on any attack rolls from any attacks he can see coming towards him.

As long as the arrow can be seen at any point on its journey from bow to target, Dodge will be effective. If the arrow's journey cannot be seen then the archer won't suffer disadvantage on the shot.

No, it doesn't. That is a pretty significant point I never realised until I reread the Dodge action as I couldn't believe this statement. Dodge does not impose disadvantage to an unseen attacker. The dodge action says that you have to be able to see the ATTACKER, not "the attack or projectile or anything coming towards you". So the alerted Cpt. America, even if winning initiative and not being suprised, can not gain that disadvantage on attacks against him by dodging.

Thanks for indirectly pointing that out to me ;-)