If anybody's curious on how to beat the CCR macro challenge, I recorded this game while playing https://www.twitch.tv/skasski/v/43153019

I forgot to record the first 3 minutes of the game, but they were rather uneventful anyway. Just queue fac - 2x mex - 5x solar with the comm, then built a single builder in the factory, expanded southeast then east with it (1 solar, 1 mex per metalspot), expanded south with comm (built radar on the way).

After the builder was completed the factory idled for a few seconds to prevent stalling. Next I got a single Scorcher and switched to the repeat-built 4 Slasher, 1 Mason queue you see when the video starts.

The recording kinda dropped my FPS in mid and lategame. Maybe streaming at 24 FPS wasn't such a good idea when I only get 10 ingame. :)