Fixed HL1 gargantua making sounds when removed (including when changing relationship) Fixed HL1 snark and turrets as well as HL2 ceiling turret not respecting relationship changes while attacking Fixed HL1 Nihilanth's energy ball attacks not being credited to the NPC Fixed HL1 Bullsquid's projectile kills not being credited to the NPC Added 262144 spawnflag to Nihilant to automatically enable his attacks