Yup, the damage needed for the repair to start is too high. Most of the time leaving a vehicle in a disabled state that can only be partly fixed by an Engineer or a Repair Specialist.

Has been fixed with the new Apex release.

@Dwarden
The issue is the if statement, as it would need to trigger for the function to work on a dedicated server, but it won't as it checks for an empty string that taskState command doesn't ever return.
As for example BIS_fnc_taskCompleted works completely fine on a dedicated server as it's written simply like this:

/*
	Author: Jiri Wainar

Well to my knowledge it's not really a framerate killer, as I'm able to use it quite happily with FPS being 55-60 in an empty world. That is until a smoke grenade is thrown or I look the sea from certain angles.

And this is about FSAA and smoke affecting performance, so I really don't see how my specs come into account.

The only thing we are interested in is that if it happens to other people too, or is it just a one off thing.

Well as I said I haven't used it myself and the description says:

"If true, units can be in a vehicle with broken tracks/wheels."

So you have to test it yourself.

I suspect your mission is made only in editor view as you said you're not advanced user.

That would mean that you place:

this allowCrewInImmobile true;

Into all vehicle init lines you want to be affected by it. These init lines can be found in the menu when you double click them.

Ofc I haven't used it and only went with this knowledge of it working:
"
Description: If true, units can be in a vehicle with broken tracks/wheels.

Syntax: vehicle allowCrewInImmobile bool

Parameters:
vehicle: Object
bool: Boolean
"

Well if I want to get creative why don't I just take my whole cutlery out and play this game? :P

Just because microphone is an option it doesn't mean that chat functions shouldn't be improved.

And to my knowledge creating a key that does this isn't an overwhelming task, but still gives gaming enjoyment to those who don't want to keep pressing a button on a simple walk from A to B.

Still a problem.