Sentrys work well as npc’s but they take up a ton of memory to be placed around the entire map and have them not move or shoot. what is a replacement?
They only cost 10 Memory Units per prop. (any prop)
Also, you can place an (Invisible) Barrier over them or make them on your team to stop them from moving.
You could use barriers.
The armor stand prop w/ armor. Also have a barrier over it like @Haiasi said.