Very well written article, I think it's great to have made something like this. I'm ranked 17th in the world in 1v1 matches and the 5 times I've lost has been to covenant hero rushes. One loss however was due to Sheriff65 (ranked 6th) locust rushing me on that 1v1 map with ruins, lots of trees, and two bonus reactors. When I scouted him I had assumed he was going to prophet rush me so I made turrets and flamethrowers and had just started producing hornets at the 3 and a half minute mark when he came with the locusts and began destroying my turrets...My carpet bomb killed his two locusts but he quickly got more and destroyed my turrets and reactors from long range and I was no longer able to produce hornets and the game was lost. I even used 2 spartans to jack locusts but the captured locusts couldn't kill his and the prophet in time to save my base.

The lesson I learned from that game is to always prepare for a rush against the covenant, but be extremely aware of the map that you're playing on. When I saw his war factory I assumed he'd be getting wraiths because to get a tier 2 unit costs way to much - but I hadn't factored in the bonus reactors on that map.