@Schulz
There is a territory in Russia. If Russia holds it, Russia gets 6. If Germany,Italy, or another enemy take it, they only earn 3.
You have two ways
The territory's production is set to 6. You create a national objective for all enemy nations that generates -3 PUs if they control this territory.
The territory's production is set to 3. Russia has a national objective that gives an extra 3 PUs if it holds that territory.
Look at the Pact of Steel 2 XML to see examples and how to make national objectives.