First of all I'm terrible at this game multi tasking is not my thing and I usually lose, hence why I'm unranked

I was wondering if you could look at this reply of WPXXI Awesome build order. I was amazed at how the Axis fuel income is greater at the start. How fast WPXXI's fuel accumulates and the speed at which units are created and caches are placed. I don't think I'll ever be as skilled as these players. So any tips would be greatly appreciated.
4 MGS
3 Motars
3 Grens
6 Puma's
1 Command Tank