I would take a takeout food cont like the round ones from Chinese food places. I fill it up with plain old soil and cover it with a layer of fine screen that is right against the dirt. This keeps the crickets from digging up the dirt and eating eggs and whatnot.
I would leave that cont in with my adult crickets. Usually about 1000 in there.
After a few days to a week I remove the container and put a lid on with a few holes in it and place in a warm area such as the top of a Cham cage.
After a few weeks the pins would start hatching at that point I take the cont and place it on top of an upside down deli cup in a small Rubbermaid bin with Some dry crickets food or bug burger on the bottom. And egg carton for them to hide
The pins hatch then seem to jump down out of the breeding cont to get food or just cause they do lol and because the deli cup is holding the cont up they can't get back in the dirt and hide.
Has worked for me but I hate breeding crickets lol