Not really, no.
B5Wars is the game system. Minis were made for it, which are the big ships. After i don't know how many years, AoG released a second B5 game system called Fleet Action, which could best be summed up as Battleforce to B5Wars' Battletech. Fleet Action minis were released at the same time. They became very popular for both games due to their lower cost per ship, but never replaced what became known as Full Scale.
When Mongoose took over B5 gaming and released A Call to Arms, they stuck with Full Scale, and Fleet Action was abandoned entirely, though both lines are still available.