/setspawn problem! darkrp

I made a spawn set for mutants in the sewers of the map bangclaw and it only spawns them in the sewers once they’ve been killed or suicided. (or any other way of dieing)
Is there a way to fix this?

Also. How do I make it so that gun dealers can’t buy weapons? e.g. pistols in the f4 menu.
And where’s the location so I can edit the pre-existing shipments?

Thanks in advance!