I never, never, never thought this would happen, but I'm actually enjoying recon a lot. Autocannon's are AMAZINGLY fun.
If you like the Fox, you'll love the VBL. "HI! BILLY MAYES HERE WITH AN EXCITING NEW PRODUCT FROM THE MAKERS OF FOXYCLEAN!" "TIRED OF THAT SIX ROUND MAG SLOWING DOWN YOUR POSTERIOR MURDERSPREE?!" "RELOAD LESS OFTEN WITH THE NEW VBL!" "BUTT-RAPE! THERE'S MORE!" (edit for cut and paste psychological warfare)
I have the XM1 in the garage, and the Challenger is unlocked (yet to buy it though). The XM1 is more of the same - though in terms of mobility it handles very well and the Rate of Fire on it is pretty damned impressive, but the low Alpha can be a problem. Armor's excellent and it's pretty quick too. No issues getting up embankments. Next Tier 6 is likely going to be the T-72A.