Thank you for all the suggestions guys. Right now I have been upgrading my cons to AT nades and getting a fast AT gun. I been having good success, especially with a partner in covering my flanks so I can get a good first shot at that pesky tank!!
QUestion for those players who suggest getting t70 for Luchs: If the T70 a good investment? I am worried that it will be chewed up by schreck volks and Pumas.
I think it depends on how fast you can get it out. If there is already a lot of AT floating about the map it might not be worth it, and I personally would save up for a T70 instead. If I can get it out before they have much armour of their own then I go for it.
Even later in the game when it's too fragile to be fighting up front, it's still useful as a zippy capping/de-capping unit to take their cut-offs or get far flung points for yourself. If you can get it to Vet 2, pop on 'Recon Mode' and the thing is basically a map hack.
Pro-Tip: Put on Recon Mode each time you go into Capture mode, since you can't fire the gun in that mode anyway, you may as well be able to see anything coming for you.