Speeding up combat resolution - tools?

[Ancestor]

I've come up with my own homebrewed system for small arms and crew served weapons but what about vehicles, especially armored vehicles. I love V.1 and I get what they were trying to do but frankly I suck at math and I'm looking for something to the effect of "no effect/richochet/reactive armor save, mobility kill, crew kill, fuel/ammo hit (immediate burn), fuel/ammo hit(time for crew to escape before secondary explosion)"

And yes, don't laugh, I'm not a tanker...I just want something remotely realistic that involves very little math!