Wierd, is this hackers or a bug in the game or a plugin?

Sorry if this is the wrong place... but what do you make of this???




I'm referring to the 4 players all named -1499.9512939453.... all the same random number name that changes every minute or two.

They don't come up when doing an F1 status... or in Rusty or any other admin tools, no sign in any logs either. They also don't show in the steam 'players in this game' tab.

Ideas?

 

Dunno what is is... did have the same thing here, somehow it fixed itself