It was a preview for Vampire Counts. Guess who won.
Actually the Arch Lector on the war altar (Who was equipped only with Heavy Armor, a Great Weapon, and the Silver Horn) killed a Vampire Lord, who was scouting (why?) when he charged him. I don't think it was the General though, as it was a 3k battle.
Honestly, I don't know who won. I didn't read the report, I just skimmed it.