Some help with friendly monsters.

I've been trying to create a scenario where a group of Space Marines face off against a demon mob. I'm using ZDoom and Thing_Hate, but the Marines are mostly using chainguns and shotguns, and they often hit their buddies, which starts infighting amongst their ranks. Is there a tag I can use that will disable ALL monster infighting for monsters that have that tag?

I use Thing_Hate(1,1,6); or Thing_Hate(1,1,7);

I think they both tell the monster to ignore all other monsters and always focus on thing_hate. I think its the 6 and 7 that do this, but I could be wrong... just try it and see.

Isnt there a flag in DECORATE called + DONTHURTSPECIES or something along those lines? Or, you could just give your marines plasma rifles, and have them haul off against Barons and Mancs

Great. Now instead of fighting back they just stand there and get killed. Is there anything else I can do?

EDIT: TO clarify, the marines will stand in their buddies line of fire and just let themselves get machinegunned to death.

if you ask this at the zdoom forum (zdoom.org) you'll get your answer in no time.