When it comes to Program Extreme, the best rewards do come from Conquest Extreme. However, it’s a grind. It’s not impossibly hard or anything, it’s just a whole lot of 3-inning games. With that in mind, this Conquest Extreme guide from CBrev is worth scoping out so you can pin down an optimal route.
However, be warned that even with this optimal route CBrev still had to play 48 games to knock out all the objectives. That’s a lot of Conquest. I assume some people have been saving Extreme Conquest for last for that reason, so hopefully this helps you out. You can also check out the Showdown Extreme guide from CBrev, which we posted over the weekend.