Later, when the Captain America identity and shield were given to John Walker, Steve took up the identity of The Captain, with Stark forging him a pure Adamantium shield as a replacement.

First seen in Captain America Comics #2, written by Jack Kirby, with art by Joe Simon, Reed Crandall, and Al Gabriele, the shield’s combined vibranium and steel alloy is noted to be more sturdy ...

Captain America’s star-spangled shield can stand up against the universe’s most powerful forces all thanks to vibranium. This fictional and nearly indestructible element absorbs and releases ...

Captain America's shield seems to bear a lot of emotionality in Marvel 1943: Rise of Hydra and as such it shouldn't outright define him in gameplay.