The combine have competition now

The pigmask army

The Pigmasks may be somewhat referential to the Nazi forces, as they share some similar atributes, and the Pigmask salute strongly resembles the Nazis' "Heil" salute.
■ Oddly, the weakest Pigmask has the biggest gun, the captain has a smaller gun, the major has a gun with a smaller tip, and the colonel doesn't seem to have a gun because the higher the Pigmask rank is the more the Pigmask cares about muscles instead of guns. Probably explains why the Colonel and/or the Major try to strike a characters joints.
■ Pigmask soldiers appear to be ordinary people when unmasked, as evidenced by the Pigmask who removes his helmet in Lydia's house.
■ The character Midbus from the 2009 video game Mario & Luigi: Bowser's Inside Story has a sign on his arms that is extremely similar to the Pigmask Army's symbol.
■ The Pigmasks were supposedly ordinary villagers from another time period, sent forward in time and brainwashed.
■ Although probably by coincidence, The Pigmask Army also slightly resembles the"Combine" from the Half-Life series, and the Stormtroopers from Star Wars.
■ There is an unused sprite of a Pigmask with female attributes, possibly meaning that female Pigmasks were planned at one time.