A few radical Vasudans have been known to load the ship with explosives and attempt to steer themselves into GTA capital ships. The first occurrence of this was the battle of Rexias 4, where the GTD Goliath was destroyed by a squadron of kamikaze pilots.
Yeah. Radicals. prolly means its not standard practice.
Only fanatics like the HoL do that.
Er, except the HoL didn't exist until the Shivans came.
Which means that radicals are present in the PVN, or at least there were prior to the Shivans. Radical does not mean Religious Fanatic. Not all the radicals joined the HoL, and not all people in the HoL are radical.
It also means its been done more than once, and probably more than twice. Standard practice, no, of course not.