I like the concept art for the charioteer, but he should be an archer. The sphynx would be a melee attack, where it slaps with its paw. The scarab should be a melee attack, and the farm should be called Nile Farm. The nile river inundated the region every year, providing rich, ferile mud for the farmers. Considering the facts that the egyptians didn't have iron and that this faction is about the mummies and stuff, you would only want to have a spearman, not a swordman. the main building should be a temple, which would store resources and makes priests that enlist slaves to gather resources and make buildings. Though this may be a problem for the cpu, it is the best i can think of. The mummies should be slow, but has a very strong attack and high HP. The pyramid should make the mummies and the scarabs, because they were found inside the temple. It could also make the jackal gaurdians Mad Elf was talking about. I do not know what would make the spearman. There should be a stables and a palace that would be required for the charioteer, because in those times if you were rich enough for horses, you would probably live in a fancy dwelling, such as a palace.