+DontInfightSpecies

[Ghastly_dragon]

Monsters with this flag set won't infight with others of their species, even if they can still be damaged by them. For example, a monster who can damage itself as part of its balance (the Vore, for example), but you don't want to infight with others of its species.

[NeuralStunner]

Also useful for characters that might inadvertently shoot each other without turning aggressive, but should respond immediately to an enemy's attacks. (E.G. Halo's troops.)

[hfc2x]

Hitscan monsters (not zombies) have always needed this.

[Megaherz]

Please add this. It's an absolute must if you want to make hitscanner human enemies with any semblance of self preservation.

[NeuralStunner]

Of course if you want them to have something resembling sense in the first place, this would be helpful too.