There's also a lot of good information though, about each weapon, grenade, and gun type. 40K gets a lot of flack sometimes for being something of a Sci-Fi cross between WWI & WWII. But there's some weapons depth shown here that has never really appeared in GW's games, or even Battlefront's Flames of War. The difference between a smoke grenade, and a white phosphorous smoke grenade, for instance, is quite interesting.
Part One: Anti-Infantry Weapons
Part Two: Anti-Tank/Anti-Air Weapons
Right now I'm working up a rough list of weapon classes (with some more modern ones included), their basic stats, and an idea of what kinds of special rules/effects might apply to each. This will go in tandem with a final pass on the Shooting Phase rules; as I clean up the layout, tweak the language to match some insights gleaned from the Melee Phase, and incorporate some thoughts that arise from my weapons research.