make it a modifed Verison where the neutral can target anyone during the day and order them to target someone during the night
Mercenary has been reworked.
The Mercenary
Neutral Support
Failure (Passive) - If your targets both die, you will commit suicide.
Saviour (Day) - If one of your targets is voted for execution today, take their place. - 1 use
Stand Guard (Night) - Prevent non-conversion abilities from targeting one of your targets. In addition, you are death immune this night. - 4 uses
Your objective is to ensure that at least one of your targets remains alive until the end of the game, your targets are [x] and [y].
The Mercenary’s targets will always be convertible Blue Dragon classes, Neutral Killer or starting Cult/Unseen.
Why would you be able to prevent conversion protection isnt whole point of it that you can prevent conversion on best targets known
No, because the Mercenary is supposed to keep their targets alive, not to keep their BD targets (if they start as such) alive. Openclaiming Mercenary and your targets will be done at your own peril now.
Should you then make non-conversion related So you could make barrier from CW pass it too
Which is precisely what we don’t want to happen. 
Merc targets should be easy to convert.
Statistically, it’s much more likely that their target will start as BD, so this is to ensure that they cannot just openclaim and ride out the game without attracting evils to their target.
If as Mercenary, you prioritize having your target be less likely converted, yes you would just not guard in hopes they would be barriered. Except they can be invested if they’re evil (they are not guaranteed BD at start) or can just… be killed or you can be killed too.