@TJByrum Yay!
I'm happy you like the theme of the Saqquar, they are a nation I've tried to use many times before, but never got to because the RPs never started. But now I can use them at least.
I don't know how big the battle is, but I was imagining no more than 20000 soldiers in total. So about 18000 for the enemy. I think that, in a normal battle scenario Saqquar would bring MUCH more artillery, probably around 100, but seeing the haste at which they assembled these forces I can see them bringing fewer troops. I think 5 Mangonels are a logical number, considering their large size and wood hungry construct, but I would definetly think more ballistas. I think bringing 15 is reasonable, considering that the Dragonspine tower would have some ballistas inside. About 10 of 15 would be the Dragon Ballista, and I would want to bring 5 Two Headed Dragons, because they are much more "crowd control" focused than the other ballistas. They sure take a lnog time to reload (Which I forgot to mention in my CS), but they ARE shooting a 100 sqaure meter piece of cloth dipped in flammabe oil.
The whole idea was to offset this number by bringing basically 300 men who are only here to operate them and build shit. Realistically a Mangonel would have about 10 people (so 50 for the 5 ones I have), and about 2-3 for Ballistas (roughly 30 for my simple ballistas). Then my the Double Headed ones would probably need 5 men to operate (so 25 with 5 of them), which all rounds up to ~95 of my 300 Engineers. I would love to bring more equipment, but I also understand how it would be "too much". Without knowing just what the enemy has, or how big the battles are, I cannot balance this number by myself, so I rely on your words. But I do think 15 ballistas. I may even tinker the number of Pioneers a slight bit if I end up with 200 spare ones.