MG's can kill armour

[PoorOldSpike]

Pic from an actual game, the German MG kills 2 halftracks, here it actually makes the second one blow up (note tracer), must have hit the gas tank!
It took several bursts at each vehicle over a couple of turns before they were knocked out.
Also, they were the weak M5 version, whereas the M5A1 version with a gunners shield usually last much longer..