1. In mission editor, create a new mission
2. Place a player unit (any kind of man unit)
3. Place an empty backpack nearby. Give it a name (eg. myPack)
4. Preview mission
5. Press escape to load debug console
6. In first watch field, enter "position player"
7. In second watch field, enter "position myPack"
8. Observe reported position of myPack is approximately double that of the player