I played a game of Chaos in the Old world today and I came close to winning as Nurgle, whilst trying to win via ticks on my counter. The thing is, I only came close to winning via VPs, and my ticks were fairly bad. I also nearly won via VPs in another game as the Horned Rat.
Considering I seem to be doing something right to win that way (and I got some fairly solid advice about winning via ticks), how can I finish it off and assert my victory point victory?