What rewards do you get in US infantry?

Bragging rights, being in a more tight knit and disciplined unit (and you'll see the same with Cavalry units, as well). Additionally, promotions have traditionally been quicker to come for the Infantry.
Bragging rights, being in a more tight knit and disciplined unit (and you'll see the same with Cavalry units, as well). Additionally, promotions have traditionally been quicker to come for the Infantry.