I used my sandbox http://killzonekid.com/kks-mp-sandbox-v1-0/ to make it happen, so the instructions will be for this.
1. start dedicated mp server
2. join the server
3. spawn a unit locally by entering this code in client side box
bob = createGroup west createUnit [typeOf player, position player, [], 0, "none"]
4. execute
5. shoot bob
the game should now freeze
Alternatively
1. put this code in server box
bill = createGroup west createUnit [typeOf sb_caller, position sb_caller, [], 0, "none"]
2. shoot bill, nothing happens
3. then type in server hint box
bill setOwner (owner sb_caller)
4. hint should show true, means bill is now local to you the player
5. shoot bill
the game should now freeze