Imaculata
Hero
Do you use a specific program or have you done the mixing yourself?
I just run two media players on my laptop at the same time, and set them to shuffle. I've gathered a vast library of sound effects over the years, and I just toss them in a play list, and play both at the same time.
Occasionally I'll also use Goldwave to mix some sounds together myself. For example, a few months ago I needed the sound of an intense magical battle. So I mixed together some random sound effects of spells being cast, with random sounds of explosions and fireworks, together with clashing swords, and there you go. Just set that baby to loop, and play some music along with it.