- last post: 01.01.0001 12:00 AM PDT
They probably took over Earth quite easily. In the books, it's outlined that human ships need to outnumber Covenant ships on an almost 3 to 1 ratio to come close to having a chance- the main problem is that the Covenant ships are just so superior, the humans have to team up and pretty much focus on taking out one at a time- plus, there are many covenant cruiser types that humans haven't even seen, and therefore have no idea how to combat. Also, the Covenant are good at slipping in past outer defenses, and more than likely sent landing parties to Earth (this is how they conquered Reach as well) to take out the MAC guns from the ground and take them offline.