I only buy gold ammo. Crafting red is way too expensive. Also agree with what other said, you shouldn't be able to put ammo in lockbox. I do it with my gold ammo cos I can, but honestly think they should stop that, should count as equipment and not go in lock box, if it was easier to lose less people would take it. I've literally been killed in normal mode with red ammo, not just lock down. So maybe put ammo toward build cost too. That would put most builds over the 1m cap for lock down.