Good old original Rogue Trader.
I've implemented a few house rules for the sake of convenience.
But we're throwing in all the crazy charts and damage diagrams.
One by one the different subsystems that slow the game down are being automated.
Yesterday's battle featured a Baneblade from an old issue of White Dwarf.
It was a small skirmish between 2 forces of 600 points.
The opposing team fielded mass Ork infantry with melta stikkbombs (this was when you had melta-grenades instead of the placed bombs from 2ed onward).
They managed to disable the track and swarm all over it, the resulting explosion enveloping and nearly wiping out both sides.
It's a lot of fun but, just like
irl, it can be hard sometimes to find people with the patience required.