Originally Posted by Xenolith666
You should re-word "Destroyer"; it's not 10 kills with each vehicle.. it's 10 kills total with either the 'tank' (M1128, Sprut) and 10 kills with the 'mobile artillery' (BM-23, M142).
It unlocked for me only having 9 kills in the Sprut, but 27 in the M1128 and I only had 1 kill in the M142 and 9 in the BM-23. Thankfully it's not each vehicle separately.
It already says "each vehicle type", I dont see how it could be made clearer.