ive noticed that late at night (between 1 to 3 am eastern time) the server tends to crash MASSIVELY.
and i dnt mean 1 crash, i mean 15+ crashes in a row... Im not sure what exactly is going on @zero... (god i wish forums had tag names...)

Even if u rcon_restart it, it still fails.

HOWEVER i noticed that doing THREE rcon_restarts back to back (takes a total of 30 seconds) and immediately changing the map to de_piranesi (most stable map imo since dust2 and assault have a lot of crash rates...), and prohibiting anyone from using any ultimates for the first 3 rounds usually does the trick (90% it works for me!)...

I think that my attempt above is a gd way to let the server stabilise before getting spammed by ultis , specially flyers and vaga and neb... maybe it doesnt matter, but i've seen gd results.