World of Tanks Classic, Season I Map Schedule and Registration Updates

Ranma, on Mar 20 2012 - 03:18, said: 1. Swamp
2. Karelia
3. Erlenberg
4. Sand River
5. El Halluf
6. Komarin
7. Lakeville
8. Prokhorovka
9. Redshire
10. Cliff
11. Ensk
12. Fjords
13. Himmelsdorf
14. Murovanka
15. Fisherman's Bay
Is this exact Map schedule by week? I mean in first round all team play in 'Swamp'. Next week 'Karelia' Third Week 'Erlenberg'
Or Random list from possible map candidates?