I really wish they didn't have those turrets in the NS, chances are that once a nuke goes off, most playable scps are already almost dead, e.g. 076 who literally disables nuking for 10 minutes, starts dying once 10 minutes have gone.
This was a rather empty and inactive server. In active servers, you lose your health MUCH faster. Once you do, you start to realise how little 3000 hp is for a big server, even accounting for the holy light shield you get. (The holy light shield blocks 60 hits of any damage)