How to stop AI to move units

In file CIV5MultiplayerOptions.xml is option MPOPTION_TAKEOVER_AI but this option (as all MP options) is not active. You can change it in xml file but it doesn't change game rules. It the game MPOPTION_TAKEOVER_AI is always true. I want to deactivate AI unit movements in MP. Pls don't ask why I want to do it. At the moment I'm able to set unit moment points to zero but it is not very clever solution and has some negative consequences. :)
Do you know any method to switch off MPOPTION_TAKEOVER_AI or deactivate AI unit movements system?

Is there any method to set unit TACTICALMoves to TACTICAL_UNASSIGNED or TACTICAL_HEAL?

Dose TACTICAL_UNASSIGNED mean don't move?