Is this correct?

I'm just bored by having red exhaust for veteran units' weapons, so i'm trying the toxin weapon exhaust for a change.

Weapon ChinaInfantryTankHunterMissileLauncherAir2

ProjectileObject = TankHunterMissile2
ProjectileExhaust = MissileExhaust
VeterancyProjectileExhaust = HEROIC Chem_InfantryStingerMissileExhaustGamma

Assuming you just copied the exhaust name and replaced the existing one, should be fine.

---

Apparently deleting the HEROIC caused crash, any idea why? just curious.

And please have a look at the initial payload question I posted.

It's a veterancy exhaust. If you delete the type of veterancy, then the game can't decide that line.

---