The Wulfen C costs 1334 BV.
By reducing the number of jump jets it carries to 7 and replacing the Stealth armor with standard plate, its BV becomes 1768.
So basically, by jumping 10 and having Stealth capabilities the Wulfen C is 434 BV cheaper than it should be.
It also happens to be a superb striker, skirmisher, and scout hunter, so yeah, that's my vote. Completely breaks the BV system, hard.