Rules for firing at war machines

We were doing the rules for firing at war machine slightly incorrectly.

Firing at a war machine is done normally. After the number of hits are determined, a die is rolled for each hit to determine what each shot hits. On a 1-4, the War Machine is hit, on a 5-6 the crew is hit.

If the crew is hit and there are special crew attached to the War Machine, roll a d6 to determine who is hit. 1-2 hits crewman a, 2-4 hits crewman b, 5-6 hits a character.

After the hits are distributed, roll to wound normally.