Sleivert

So me and a few friends were going to play on this server and we are logging in one at a time, me and another sniper first, i got in and got killed straight away and everyone else died aswell. Other guy alt+f4'ed and got away but everyone else died and i'm wondering if there is any way me and the rest of the guys that got killed could get our stuff back? So annoying as i had as50, nightvision googles, rangefinder and more