So during our last game Hoplite and I managed to generate an assault that had the potential to involve up to 2000pts of troops a side.
Hoplite positioned three of his Gargants within (I thought) 5cm of each other enabling me to get a combined assault against all three of them. To manage this I assembled two Death Wheels and two Black Legion COmpanies.
The idea was that I was going to advance with the Nurgle affiliated company, after summoning, and place them in front of the Slaanesh Company who would then retain, summon daemons and initiate the assault. That would force Hopite to engage at least one set of daemons if he wanted to counter-charge with the Gargants.
Too bad that I lost initiative and then got beaten to a pulp by his Gargants :-)