Something like this.
Before the map pack update
Ladderrank = ~20 times on the nadeo solo campaign
After the map pack update
Ladderrank = (0.5 * ~20 times on the nadeo solo campaign) + (0.5 * ~20 times on the new campaign)
I guess such a system would be pretty useful, to get people play the updated maps. Because atm it feels like that there isn't really a competition on the startrack campaign as it was on the nadeo campaign, which is really sad because there are some very good designed maps in this campaign.
Furthermore i would like to see such a contest like startrack once a year or each half year
