I realize that the expansion possibilities of this request be could limitless so, for now, let's just focus on the basic U.S. weaponry of the era that I'm casually aware of. 1) Browning Automatic Rifle - (Although IRL the BAR used/s .30-06 ammo I could totally live with it using vanilla .308 ammo as a "close enough" kinda thing since, as far as I can tell, the difference is negligible so why not keep it simpleish? I find it odd that the Thompson .45 SMG is present in the vanilla version of the game but the BAR is not (changing the Combat Rifle receiver to .308 ammo precludes auto fire capability for some reason) despite the fact that they share virtually the same time line and history...e.g. Al Capone vs. Bonnie and Clyde. 2) Colt M1911A1 - The first U.S. made semi-auto pistol which was developed in, as the moniker suggests, 1911 which predates the Prohibition Era by nearly 9 years. That said.. I realize that there are already mods which address the M1911A1 so this one is secondary as I can simply find the one I prefer so long as the BAR thing is compatible with it.