I could see this being useful on vanilla, but since you can spend some extra points for pretty cheap and buy more weapons, it's pretty useless.
I know I am late but, +1 Instead of that box change the model to a dispenser. It would make it look nicer.
I like the idea and would support adding it, but I don't think it would see much use unless there was a death station version with an upgrade. Usually T's are the only ones that need ammo refills. Innos and D's have less people to kill and have a lower chance of surviving to the end of the round.
+1 please add this would be an amazing addition to this server because all the servers are normally in the mid to high pop so ammo is very scarce sometimes