Once a cop has been dominated, you can move him like you would with a civilian hostage. You can direct the moved cop to your waypoint (requires GoonMod's Custom Waypoints).
The behavior of a moved cop is described here.
This is an AI mod so:
- the host must run the mod to enable the new commands ;
- modded clients playing with a modded host have access to the extra interactions ;
- modded clients playing in a vanilla hosted game are unaffected ;
- clients without the mod playing with a modded host are unaffected.