One thing I'm waiting to see more about in Moon Knight is the idea that Khonshu has other followers/worshipers/devotees besides Marc Spector. Khonshu said as much during an argument they had in the previous arc, when Marc was calling out for help, and Khonshu responded by mocking him. Marc demanded help, because if he died, Khonshu would be a god with no followers, and Khonshu blithely responds that he never told Marc he was the only one, then walked off.
Move forward to the current story. There's someone running around killing Gilberto Alcantra's men, butchering them, in fact. So I had a thought: Could this person be one of the other followers Khonshu aluded to? Whoever they are, they have no qualms about killing, and where Moon Knight was carving the crescent moon into people's foreheads, I assume to pay honor to Khonshu, this one is making an elaborate painting from the blood of their victims.
The hitch is my brief Internet research suggests the symbol is the Aztec* Sun God. So, that suggests that the fight that is sure to come is more Sun vs. Moon, rather than followers of Khonshu squaring off. Of course, given that we're dealing with different cultures, it would make sense he would take different forms, but why moon diety in one culture, and sun diety in the other?
* Actually, it may really be the Mexica Sun God, a culture I think preceeded the Aztecs, and laid the foundation for some of their beliefs. Or is it the other way around? Maybe the Mexicas were just some of the people dubbed Aztecs? I'm finding conflicting reports online.