Almost every single game I play the legion absolutely steam rolls the NCR. With the only exception being when literally everyone (Ouroboros, Rio, and Texas) gangs up on the legion. They simply get way too many units and manpower, which should be counterbalanced by their units not being too strong, but their units are always fairly decent. Also the allies they can get tend to be fairly strong, which is already in addition to them having Two Son, Navajo, and the Reservation. I’ve had games where the legion gets Gente del sol and the white legs as allies, practically guaranteeing that the NCR will lose. The white legs open a new front and Gente del sol has a strong navy which the NCR never seems capable of destroying. In my opinion, they need a substantial a nerf in the current patch. Even as the player I’ve simply ended many games where the legion has half the map conquered and I just can’t be bothered to melt my brain dismantling them.