Hey! As I've read on the web, people wanted a new way to install maps, so there it is.
1. Install HIVE Lambent and HIVE reaper
2. Install these maps in:
%USERPROFILE%\Documents\My Games\Gears of War for Windows\WarGame
3. Run GearCooker and configure application
4. Add maps to cook in gearcooker.
5. Play Game
Contains 46 Maps already Released as the time being (19 may 2017)