As a WW2 buff I greatly appreciate the Infantry series (still waiting on Guardian and Spectre :'( ) and really hope they add more guns with the skin.

Off the top of my head:

Sheriff (Webley Revolver Mk 4)

Bucky (M1897)

Vandal (basically an AK-47),

Knife (come on, military swords are a thing)

Stinger (MP-18))

Shorty (Sawed-off shotgun)