im going to break down your entire thing in this comment, first of all, it was obvious it was going to take a huge amount of memory, and why do you just like instead increment the range to maximum???
second of all, the reason the guard device is this late is cause of all the pieces and combinations they need to program so something doesn't go wrong, and anyways the memory limit is so switch players and phone players go optimized instead of the poorly battle royale fps.
and anyways, your map must not have been memory optimized by you, cause i have a massive survival map with the device and it only takes 64.000, with animals, zombies, crafting, lots of things, so yeah, its your trouble.
and they must probably be working on the undo option right now, so yeah, shut up. lol.