When trying to trigger an engine failure using setHit on any of the mod's helicopters (except the OH6) they make a thump/metal sound, but thats it; no damage indicated, engine keeps running. Probably just a minor inherited config error.
Code blip that works on the rest of the game and dlc heli's (code modified since out of context)
_engineNames = ["HitEngine", "HitEngine1", "HitEngine2", "HitEngine3", "HitEngine4"];
{
_configName = getText (configfile >> "CfgVehicles" >> typeOf _veh >> "HitPoints" >> _x >> "name");
_veh setHit [_configName, 1];
} forEach _engineNames;