For the most part it would seem that the majority of the weapons are ineffective against the Vajra. I would like to see the later developments in weapons technology from the SMS, or rather Frontier research facilities. I wouldn't know how much research power they have to develop new weapons, after all, they are only there to test new stuff out, not make them. Perhaps though, they'll be the first ones to test new weapons out along the track!
Hopefully we'll see a few things eventually, the VB-6 transform or at least get used, as well as the CF VF-25s and also the transformation of the 171s, and also some competent pilots use them too.