Roight, small update as apparently one needs 3 units to do the 500 points thing, something the organiser forgot to mention during checking.
No problem, I switched to the Ravening Hordes list then as the Tamurkhan list is unplayable at that scale and needing 3 units, so here is the new force:
Hero: Level 1 Sorcerer - 65 points
Core: 19 Warriors full command - 201 points
Core: 10 Blunderbusses - 120 points
Rare: Earthshaker Cannon - 110 points
Totaal: 496 points
Easy for the opponent as the RH list is still on the GW site for downloading, so they don`t even need the big book from Forge World, and that makes the force look now like this:
Basically the warrior unit now counts 3 more members, and my favorite boom-toy has been added YAY.