It's a shame the campaign of RA3 was boring. They got the theme and cutscenes right, but the campaign missions were rather slow, generic and forgettable.

It's the opposite of C&C3, which had a good campaign but the theme was a step back from the scifi of Tiberian Sun. Especially the GDI/NOD units were way less futuristic, and the alien ones were a bit too similar to each other in style. The cutscenes were also mostly boring compared to earlier games.

If I recall correctly, the expansion pack for C&C3 was much more interesting in these aspects, but the gameplay suffered.