Make it skill based and only set the skill to non-zero/ 45 for that specific model.

Code:
//skill1: angleCorrection 0
action enemy()
{
	...
	my.pan += ang(temp_angle.pan + my.skill1 - my.pan) * 0.45 * time_step;
}

alternative:

//flag3: crab_mdl 0
action enemy()
{
	if(is(my,FLAG3))
	{
		my.skill1 = 45;
		other specific settings for this model
	}
	...
	my.pan += ang(temp_angle.pan + my.skill1 - my.pan) * 0.45 * time_step;
}



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