Why does the Cav Corp cost 5 population space? It's stats arent any worse than say a Mamluk which is less than 5. I suggest you make the pop cost 3 or 4 rather than 5 since it has no splash attack or aura like elephant units or the polish winged hussar has. This way, players will see them as the hand cav alternative to going for buffalo soldiers in the imperial age as they will be able to mass them a bit easier considering the expensive cost in the first place of food and gold.

Are you sure that is worst even with shadowtechs?

Yeah... that one unit everybody complains about to the point of being a meme due to the incredibly high hit points is underpowered, of course it is...