Robustify this

gamemodes/copsnrobbers/entities/weapons/cnr_ak47.lua

@@ -18,4 +18,17 @@ SWEP.Sound_Fire					= {
 SWEP.Primary.ClipSize			= 30
 SWEP.Delay						= ( 60 / 700 )
 SWEP.DamageClose				= 25
-SWEP.DamageFar					= 13
+SWEP.DamageFar					= 13
+
+SWEP.BubbleSpreadUp				= 0.9
+SWEP.BubbleRecoilUp				= 0.9
+SWEP.BubbleSpreadDown			= 0.3
+SWEP.BubbleRecoilDown			= 0.3
+
+SWEP.SpreadStart				= 0
+SWEP.SpreadEnd					= 10
+
+SWEP.RecoilUp					= 55
+SWEP.RecoilSpeed				= 90
+SWEP.RecoilDistStart			= 1
+SWEP.RecoilDistEnd				= 10

gamemodes/copsnrobbers/gamemode/playerbs.lua

@@ -188,6 +188,29 @@ else
 		local attacker		= net.ReadEntity()
 		local inflictor		= net.ReadEntity()
 
-		chat.AddText( c_attacker, attacker:Nick(), color_white, " [", inflictor:GetPrintName(), "] ", c_victim, victim:Nick(), color_white )
+		local name_victim
+		local name_attacker
+		local name_inflictor
+		if IsValid(victim) then
+			name_victim = victim:Nick()
+		end
+		if IsValid(attacker) then
+			name_attacker = attacker:Nick()
+		end
+		if IsValid(inflictor) then
+			if inflictor.GetPrintName then
+				name_inflictor = inflictor:GetPrintName()
+			else
+				name_inflictor = inflictor:GetClass()
+			end
+		else
+			name_inflictor = "???"
+		end
+
+		if !IsValid( attacker ) then
+			chat.AddText( c_attacker, name_attacker, color_white, " [", name_inflictor, "] ", c_victim, name_victim, color_white )
+		else
+			chat.AddText( c_attacker, name_attacker, color_white, " [", name_inflictor, "] ", c_victim, name_victim, color_white )
+		end
 	end)
 end